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President Donald Trump returned to Phoenix for a rally Tuesday. Check back for updates.

11:05 P.M.: Police chief says night wasn't 'chaos'

The mayor of Phoenix and the Phoenix police chief declared success on Tuesday night following a speech by Trump that ended with streets filled with tear gas.

“The good news is the job of the Phoenix Police Department tonight was to make sure that everyone got home safely,” Mayor Greg Stanton said. “The good news is that is exactly what occurred in Phoenix tonight.”

Two people were arrested on suspicion of aggravated assault on a police officer, said Police Chief Jeri Williams. Another person was arrested earlier in the day on an unrelated warrant, Williams said.

Reporters questioning the mayor and chief, some of whom were present as the scene unfolded, said they heard no verbal warnings and that there was little provocation. One described the scene as chaotic.

The chief denied that was the case.

“I wouldn’t call it chaos,” Williams said. “Those are your words. I’m not going to use those words.”

Williams said that part of the use of force involved police showing themselves in full riot gear. Williams described that presence as an “act of showing we will show force if we have to.”

Williams said she heard from officers that the first gas came from protesters.

“They had their own gas they threw at police, not our gas,” she said.

Sgt. Jonathan Howard, a department spokesman, told reporters that verbal commands to disperse were given. He said reporters who were with the protesters might not have heard all of them.

Howard also said that officers first used directed pepper spray at individual protesters, before using the larger-scale pepper-gas balls.

Stanton said a small number of individuals marred what was a celebration of the First Amendment right of free expression, both inside the convention hall and outside.

Stanton said police worked with the groups that planned rallies and that he doubted any of the trouble came from those organizations.

“We have no reason to believe that anyone who engaged in assault of a police officer were part of any organization that were encouraging people to come down here,” he said.

Both Stanton and Williams promised more answers after the department conducts an investigation of the events of the night.

“Phoenix police is a wonderful organization,” Stanton said. “One thing they do well is they are willing to look in the mirror.”

9:08 P.M.: Police fire more gas

Officers in riot gear started a slow march up Second Street toward Van Buren Street, clearing crowds following the Trump speech.

Every few feet, officers tossed gas at protesters. Television footage showed that at least one man was struck by a bean-bag style projectile.

8:38 P.M.: Gas grenades in Phoenix

Police released pepper balls and pepper spray in the downtown Phoenix area after they said some protesters tossed rocks and bottles at officers, a department spokesman said.

Police also said that protesters dispersed gas in the area. A cloud of gas was seen on Second and Monroe streets. Reporters in the area heard two loud flash bangs on Third Street.

At least two Republic photographers were affected by tear gas.

Trump's motorcade was back in Paradise Valley, according to a Republic reporter at the hotel.

8:25 P.M.: Trump ends speech

President Trump's speech has ended.

"Arizona will thrive and our beloved nation will succeed like never ever before," Trump said in closing.

8:03 P.M.: Trump slams Arizona's senators

Trump went after both of Arizona's senators in his speech Tuesday, but not by name.

He mentioned the health-care so-called "skinny repeal" vote that didn't pass the Senate. Sen. John McCain cast the deciding "no" vote, despite lobbing from Trump himself just before the vote.

"We were just one vote away from victory after seven years of everybody proclaiming: repeal and replace," he said. He repeated five more times that repeal was just one vote away. The crowd started chanting, "Drain the swamp."

Trump said he was advised to keep up the tone of his Monday speech on the Afghanistan war

"They all said, 'Mr. President, your speech was so good last night. Please Mr. President, don’t mention any names,' " Trump said.

"So I won’t. I won't. I won't, folks.

"One vote away. I will not mention any names. Very presidential."

Trump then pivoted to Sen. Jeff Flake, again without naming him.

"Nobody wants me to talk about your other senator who is weak on borders, weak on crime," he said. "So I wan’t talk about it.

"Nobody wants me to talk about him. Nobody knows who the hell he is. And now, see, I haven’t mentioned any names so now everybody's happy."

7:43 P.M.: Trump hints at future Arpaio pardon

Trump, during his speech, hinted at a forthcoming pardon of former Maricopa County Sheriff Joe Arpaio.

"Do the people like Sheriff Joe?" he asked the crowd.

"Was Sheriff Joe convicted for doing his job? He should have had a jury.

"But you know what? I’ll make a prediction. I think he’s going to be just fine," Trump said.

Arpaio was found guilty of criminal contempt for violating a court order.Trump had hinted in interviews that he was considering a pardon.

"But I won’t do it tonight because I don’t want to cause any controversy," he said, asking the crowd for its consent. The crowd cheered.

"But Sheriff Joe, feel good."

7:27 P.M.: Trump blasts "fake news"

Trump, in his speech, pointed out what he said was unfair treatment of his comments regarding the violence in Charlottesville, Virginia.

Trump pulled a paper from his suit jacket that he said contained his statement from that Saturday, the day that a car drove into a crowd of marching protesters, killing one.

But, in reading it, Trump left out the "many sides" wording that caused so much furor from political figures.

Trump also downplayed the size of the crowd outside the venue, saying the Secret Service said it was small.

"All week they're talking about the massive crowds that are going to be outside," he said. "Where are they? Well, it's warm."

7:08 P.M.: Trump begins speech

Trump entered to the sounds of “God Bless the U.S.A.” by Lee Greenwood.

7:02 P.M.: Carson fires up crowd

U.S. Housing and Urban Development Secretary Ben Carson was met with thunderous applause as he took the stage to deliver remarks that centered on unity and inclusiveness. During the general election, he stumped in Arizona for Trump.

During his brief remarks, Carson said there are forces “who want to divide us on the basis of race, age (and) religion."

The crowd booed.

He said the nation could not be divided and asked that hearts be filled with “love instead of hatred,” and tongues be used for “words of respect instead of slander.”

He was followed by prayers from Alveda King, a niece of civil-rights leader Martin Luther King Jr., and Franklin Graham, son of the Rev. Billy Graham.

Graham then introduced Vice President Mike Pence.

— Yvonne Wingett Sanchez

6:56 P.M.: Franks praises crowd size

Rep. Trent Franks, R-Ariz., said no one has crowds the size of Trump's.

“I don’t go anywhere in the political world and see crowds like this,” Franks told The Arizona Republic from inside the Phoenix Convention Center.

Franks, a close ally of Trump’s in Congress, greeted the president at the airport when he arrived in Phoenix on Tuesday.

While Franks was hopeful that the president would pardon former Maricopa County Sheriff Joe Arpaio, he didn’t think it would happen Tuesday.

“I think that will happen. I don’t think that will happen obviously here today,” he said. “I think it will happen, because I think the president recognizes maybe better than most how it feels to be persecuted on strictly a political basis rather than a factual basis.”

— Eliza Collins

6:46 P.M.: Massive crowds ... in Cleveland

At least two photos were shared earlier Tuesday on Twitter purporting to depicting the large crowd size for the Trump rally in downtown Phoenix.

Those photos were actually taken in downtown Cleveland during the parade for the Cavaliers who had win the 2016 NBA Finals. Both of the original tweets have been deleted.

6:39 P.M.: Large crowds, no arrests

The gathering outside the Trump rally was large but relatively peaceful.

As of 6 p.m., no arrests had been made, according to Phoenix police.

The Phoenix Fire Department reported 26 heat-related calls, with two people transported to hospitals for further evaluation.

— Megan Cassidy

6:26 P.M.: Real fake news here to cover Trump

Jordan Klepper, a former correspondent for “The Daily Show,” was spotted interviewing several protesters and Trump supporters outside of the Phoenix Convention Center.

The wry comedian's "Daily Show" spinoff, "The Opposition," premieres Friday on Comedy Central. The new series will make fun of the hyperbolic and conspiracy-inducing "fake news" in the alternate-news media landscape, Comedy Central announced last month.

— Garrett Mitchell

6:20 P.M.: Trump headed downtown

Trump has started moving towards downtown Phoenix.

His speech is scheduled to start at 7 p.m.

5:57 P.M.: Rep. Gallego joins protesters

Rep. Ruben Gallego, who earlier Tuesday called Trump an “abject liar” and “racist,” joined the protesters across from the convention hall.

“This is a long-term exercise in democracy,” he said, urging peace.

Police had effectively separated the anti-Trump crowd from those who were entering the convention center for the speech.

Protesters shouted that those entering the venue were taking a “walk of shame.” Some Trump supporters smiled and waved back.

Retta Buntin of Gold Canyon said she came out to "support the president."

"He's more concerned with people than with politics," Buntin said.

Buntin and her high school friend, David Harris, held a yellow flag with the words “Don't tread on me.”

Harris also said he supported the president.

"I don't remember any time in our lives when the president was so available to his base," Harris said.

— Megan Janetsky, Megan Cassidy and Laura Gomez

5:44 P.M.: Build that line

At around 5:30 p.m., the line to enter the convention center for Trump’s speech stretched down Second Street, headed east on Washington Street to Fourth Street, found its way to Jefferson Street in front of Chase Field and extended to Talking Stick Resort Arena.

Along Jefferson Street between the ballpark and the basketball arena, stood David Weller, 75, a Vietnam War veteran. He had doubts about whether he would get into the convention center.

“I don’t think so, but we have to at least try,” he said. “I came here to see the president of the United States.”

— Craig Harris

5:20 P.M.: Waiting inside for the speech

Thousands of voters poured into the venue as Trump’s campaign playlist blared hits like Elton John's "I’m Still Standing.”

The venue capacity is 19,000, a city spokeswoman said.

Campaign volunteers handed out signs reading “Drain the Swamp,” “Veterans for Trump” and "Buy American, Hire American.”

Kyle Beach said he drove from Los Angeles to hear “truth” from Trump. He wore a shirt bearing an image of Seth Rich and said he wants to know more about what happened to the man in the center of the conspiracy theory about the leaks of emails from the Democratic National Committee during last year’s presidential race.

“President Trump is the only one who speaks the truth, he’s the only one who tells it like it is, and that’s the most important thing to me,” said Beach, 29, a designer. “I want to know what happened with Seth Rich ... and I want to know why the media framed Russia.”

Susan McGraw of Sun City waited in line 2½ hours to see Trump because she wants to show her full-throated support of him in person.

“I just like to listen to his voice, I love everything he says, he’s very positive, he’s 100 percent for our country, and he believes in our country, and he’s for our country,” the Republican voter said. “He is a great man. He’s like family, and we love him.”

— Yvonne Wingett Sanchez

5:03 P.M.: Let (cellular) freedom ring

Social-media posts claiming the Secret Service will shut down phone service around the Phoenix Convention Center for Trump's arrival were dismissed by the agency on Tuesday.

That includes both cellular service and social-media use.

— Karisma Sandoval

5 P.M.: Scenes from a Trump campaign stop

Several groups of bikers made their way to the streets outside the venue. They had the stated aim of making sure attendees at the rally felt safe.

The invisible hand of the free market also made its presence shown. Concessionaires set up tables with both pro- and anti-Trump merchandise. “God Bless The USA,” blared from a boombox that was selling pro-Trump caps and shirts.

Outside the convention center, Monroe Street was the dividing line. Those with tickets were allowed south; those without were kept north.

And although Arpaio was not expected to attend the rally, protesters brought along a reasonable facsimile: a larger-than-life, inflatable Arpaio clad in jail stripes. The same inflatable had also been posted outside the federal courthouse during Arpaio’s contempt trial.

Next to that inflatable was a Trump inflatable that showed the president clad in a white robe decorated with a Nazi swastika over his suit and tie. In one hand, the inflatable Trump held a white hood.

4:42 P.M.: Marching toward Trump

Hundreds of people met at Civic Space Park near Arizona State University before walking to protest in front of the venue where Trump will speak.

Some wore Bernie Sanders and Black Lives Matter T-shirts. Another group, self-identified as the "John Browne Group," carried AR-15 rifles.

Puente Arizona, One Arizona, Mi Familia Vota, and Progressive Democrats of America handed out water and granola bars from three big coolers before the group marched south on Central Avenue toward the Convention Center.

They began their chants: "No Trump; No KKK; No Fascist USA" and "This is what democracy looks like." The march ended in front of the Herberger Theater, across the street from the Phoenix Convention Center.

— Laura Gomez

4:22 P.M.: Trump arrives at Montelucia

Trump's motorcade traveled up State Route 51 to the Omni Scottsdale Resort & Spa at Montelucia.

There had been a steady police presence outside the hotel through the afternoon.

Two officers at the entrance directed vehicles away from the hotel.

A SWAT vehicle and several undercover police vehicles began entering the resort at around 3:30 p.m. Their presence increased over the hour until the motorcade arrived.

— BrieAnnaFrank

4:12 P.M.: The protest scene

At least a dozen organized groups were planning protests against Trump outside the Phoenix Convention Center.

By mid-afternoon, a number of individual protesters had gathered across the street from the convention center on Second Street just south of Monroe. The atmosphere between protesters and supporters standing in line waiting to get into the convention center was tense at times. Some shouts were exchanged.

"Build that wall," chanted supporters.

"Tear the wall down," chanted protesters.

Cathy Harvard of Phoenix held a handmade "Impeach" sign. The 58-year-old receptionist said this was the first Trump event that she protested, and she felt strongly she needed to show up outside the convention center to speak her mind. She said she left work at 1 p.m. to get to a spot outside the convention center.

"I do not like that man. He does not belong in the White House," she said. “He needs to be impeached. He needs to go."

Standing in the shade across from the convention center, she wiped her brow with a washcloth.

"He shouldn't even be in Arizona," she said. "He's out having a campaign rally. Like someone is going to vote for him in 2020?"

— Anne Ryman

3:47 P.M.: Trump lands in Phoenix

Trump has landed in Phoenix.

Air Force One left Yuma around 3:13 p.m. and landed about 30 minutes later at Phoenix Sky Harbor International Airport, approaching from the east.

A crowd of about 60 supporters were on hand to greet him. A cheer erupted when Trump emerged from Air Force One and waved at them.

On the tarmac, Trump was greeted by Rep. Trent Franks and Arizona Gov. Doug Ducey.

Television cameras showed Ducey getting into the limo with Trump and Vice President Pence and driving away. Ducey was seated facing backwards and appeared to be having an animated conversation with Trump.

3:31 P.M.: Not the same old supporting acts for Trump

Don't expect all of the usual suspects to be on stage Tuesday with Trump, according to organizers. One notable absence will be Arpaio.

Among those expected to attend: Housing and Urban Development Secretary Ben Carson and Rev. Franklin Graham, the son of evangelist Billy Graham.

The agenda, which was not finalized as of early Tuesday afternoon, was expected to include a prayer for unity in the wake of the deadly violence in Charlottesville, Virginia.

The VIP list also includes state Treasurer Jeff DeWit, one of Trump’s earliest supporters for president, and his wife, Marina; former Arizona Gov. Jan Brewer, an ardent Trump supporter and one of his defenders in chief; Phil Lovas, a former state lawmaker who now works for the Trump administration; and Lori Klein, the Arizona Republican National Committeewoman and former state lawmaker.

Klein, in 2011, pointed a loaded handgun at a reporter's chest during an interview. Months earlier, she was stopped as she tried to carry that same handgun into the state Capitol during the State of the State address. It was two days after the shooting at a grocery store outside Tucson that killed six and wounded 13, including then-Rep. Gabrielle Giffords, who was the target of a failed assassination attempt.

— Yvonne Wingett Sanchez

3:14 P.M.: Goldwater Park closed; Paradise Valley prepares

It is not known what Sen. Barry Goldwater would think of President Trump if he were alive today. There is no way today to gaze upon his statute and contemplate it.

The Barry Goldwater Memorial, a small Paradise Valley park dedicated to Arizona’s most famous senator, is closed Tuesday due to Trump’s planned overnight stay at a resort across the street.

The entrance to the free attraction, which opened in 2004 on the northeast corner of Tatum Boulevard and Lincoln Drive, is blocked and there is a sign that says, “Park Closed.’’

The memorial is across the street from the Omni Scottsdale Resort & Spa at Montelucia, where Trump is expected to stay on Tuesday night after his rally in downtown Phoenix. The sidewalks in front of the resort on Lincoln Drive are closed beginning at Tatum Boulevard.

— Dawn Gilbertson

3:02 P.M.: Next stop, Phoenix

YUMA – President Donald Trump has boarded Air Force One.

He spent time taking selfies with Marines and signing autographs.

2:52 P.M.: Drawn-out denial for Steve Benson

Steve Benson is a Pulitzer Prize-winning editorial cartoonist and a respected presence at The Arizona Republic. But that, and an email, still could not get him a credential into the Trump campaign stop.

Benson was told in an email Sunday from the campaign press office that his credential request had been denied.

“Any name that does not appear on our list, will not be permitted to enter as credentialed media,” the email said. The misplaced comma was in the email.

Benson has good company.

Also denied credentials were KPHO-TV’s Morgan Loew and Gilbert Zermeno. The reporter and cameraman have long teamed up to do investigations for Phoenix’s CBS affiliate.

Zermeno, on Facebook, posted: “Guess I’ll be looking for a scalper.”

2:42 P.M.: Sky Harbor prepares

By Tuesday afternoon, Phoenix Sky Harbor International Airport was already showing signs of preparation for the president's arrival.

The plane ramp at the executive terminal, the small building that sits near the west end of the airport, usually faces out to Sky Harbor Boulevard over a strip of landscaping and grassy span.

Large shuttle buses of the type that normally ferry passengers to the airport’s rental-car center were lined up, one after another, just inside the metal fence around the terminal. Black fabric on the fence further obscured the view. Police cruisers lined up at the entrance to the terminal’s small parking area.

Air Force One is expected to arrive at the terminal Tuesday afternoon following the president's stop in Yuma.

2:16 P.M.: No pardon for Arpaio

Trump will not pardon Arpaio during his visit Tueday, according to a White House spokesperson.

Phoenix Mayor Greg Stanton said in a tweet that the lack of a pardon showed the power of activist groups like Puente Arizona, One Arizona, Lucha, Promise Arizona, Mi Familia Vota and others.

1:57 P.M.: Trump arrives in Arizona

YUMA – Trump has arrived in Arizona. He landed at 1:43 p.m.

He remained inside Air Force One for close to 10 minutes before emerging with a smile and waving to the small crowd that welcomed him to the Marine Corps Air Station Yuma.

His chief of staff John Kelly followed the president down the stairs. They then got into the vehicle escort that would take them to a series of appointments.

First up, Trump met with officials from Customs and Border Protection at their hangar near the airport, and saw some of the equipment they use to patrol the Yuma border area.

He them went into a closed-door briefing regarding border enforcement measures.

During this time, Marines stationed on base lined up in 106-degree weather at the tarmac, waiting for the chance to greet the commander in chief, before he set out to Phoenix.

— Rafael Carranza

1:26 P.M.: Will Trump pardon Arpaio?

Speculation is mounting whether Trump will pardon Joe Arpaio and many are taking to social media to express both support and opposition to a pardon.

"Obama pardoned traitor Chelsea Manning, Trump will pardon a patriot in Joe Arpaio," wrote one Twitter follower.

And then there is this tweet from a follower who opposes a pardon.

"Trump: How can I distract people today. Maybe I will find the most racist criminal I can find & pardon him. Enter, Joe Arpaio," @funder

Half of Arizonans believe Trump should not pardon Arpaio, according to a poll conducted over the weekend.

— Daniel Gonzalez

10:30 A.M.: Group opposes Arpaio pardon

The non-profit Mi Familia Vota hosted a news conference outside St. Mary's Basilica to denounce Trump's visit to Phoenix and his potential to pardon Arpaio.Speakers represented various organizations, including Center for Biological Diversity, CHISPA, Planned Parenthood of Arizona, and the Arizona Coalition for Change.

"We will continue to organize our community — educate them — and ensure that folks that align with out values are elected into office to represent our community," Mi Familia Vota spokesman Eduardo Sainz said.

Additionally, U.S. Rep. Raul Grijalva (D.-Ariz) and Tucson Mayor Regina Romero spoke.

"We refuse to stand idly by while Trump destroys everything America stands for," Romero said.

Many of the protesters in attendance had signs and t-shirts announcing the community will not be divided and they will stand strong. The biggest sign was designed by the Center For Biological Diversity, which, translated from Spanish, said, "Migration is natural. We reject the wall."

— Gabriella Del Rio

10:15 A.M.: Schools, businesses closing

Trump's rally has prompted many businesses, offices and stores in the downtown area to close early for the day, although some will remain open. Some schools in the area also are sending students home early.

This is a sign posted on the Starbucks at the Arizona Center.

This is the first time in recent memory that a political rally has triggered a widespread closure of businesses, stores and offices, report Kaila White and Garrett Mitchell.

Some are closing to avoid traffic congestion, others out of safety concerns since this is the first Trump rally in the wake of the recent violence in Charlottesville.

— Daniel Gonzalez

9:30 A.M.: Need a new hat?

Merchandise tables have begun to pop up right next to the growing line for the rally.

"Make America Great Again" hats and shirts are being snatched up by the handful by supporters who dared to step out of their place in line to purchase one.

Shirts with President Trump's face and phrases such as "Built Trump Tough" and "It's gonna be YUGE" line the tables.

— Terell Wilkins

9:15 A.M.: Check out the kicks

Among the growing crowd of supporters, there are a few with unique Trump-inspired outifts.

The favorite so far is a pair of high-top sneakers with Trump written down the side and a "Make America Great Again" insignia on them.

John Rynhard of Phoenix sported the shoes. He said he bought them for $69.99 online about six months ago.

“I was on Facebook and an ad popped up for Trump shoes,” Rynhard said. “So naturally, I clicked on it and that’s where I found them at.”

Rynhard said he had been waiting to go his first Trump rally to wear them so today is the first time they'd hit the pavement.

— Terell Wilkins

9:12 A.M.: Trump to tour Yuma first

President Trump will get a first-hand look at both the effectiveness and challenges of building a wall along the border when he visits the Yuma area in southwestern Arizona Tuesday, hours before his rally in Phoenix.

It will be the first time Trump has visited the border since he became president, reports The Arizona Republic border reporter Rafael Carranza, who will be covering his visit to Yuma.

Trump has repeatedly vowed to build a "great, great" wall along the southern border, and his visit to Yuma is expected to demonstrate to his supporters that he isn't backing off that promise.

Illegal immigration and drug smuggling were once out of control along this part of the border until Congress approved 62 miles of fencing. The Border Patrol's Yuma Sector is now one of the quietest along the southern border, where overall apprehensions of undocumented immigrants have fallen to some of the lowest levels in decades.

— Daniel Gonzalez

8 A.M.: Trump supporters up for hours

The first dozen Trump supporters are already gathered at the convention center in anticipation of Trump's arrival later in the afternoon.

The first arrived at noon Monday. The next handful were there by 4 a.m. Tuesday.

Gene Huber, of West Palm Beach, Florida, was first in line after coming in at noon Monday.

"I just love to see him," Huber said of Trump. "The excitement that he brings to our family and 'We The People' our movement."

Huber was later joined by Alexis Marcelino and Tracey Opbroek, of Apple Valley, California.

Marcelino said she hopes Trump spends at least a portion of his speech clarifying that his supporters do not reflect the views of hate groups like Nazis and white supremacists. She said she doesn't want to see people with swastikas supporting Trump in downtown Phoenix.

"We all agree that that is hateful and I kind of hope from there that we can move on," she said.

One of the most vocal supporters in the crowd is Irma Trujillo, of El Paso, Texas, who arrived with a bright neon pink sign that read "Deplorable Latina Loves Trump."

She got a big round of applause from the rest of the group.

"I'm looking forward to the pardoning of Joe Arpaio," Trujillo said. "I have to see it. I am so excited for that, if it happens."

The doors for the rally open at 4 p.m.

— Terell Wilkins

7 A.M.: Look for the chicken

The 20-foot inflatable Donny the Tax March Chicken is apparently working his way to Phoenix.

The giant chicken, made in the likeness of President Donald Trump, has been popping up in Washington, D.C., on and off for several months. According to its handlers, the chicken symbolizes the need for transparency in the Trump Administration and a continued push for Trump to release his tax returns.

The organization Indivisible Surprise is hosting Donny's Phoenix visit.

— Alia Beard Rau

6 A.M.: Potential for drama

Among the few points President Donald Trump's supporters and critics would likely agree on is that the former reality-TV star's administration hasn't lacked drama. And his visit Tuesday to Phoenix, his first as president, certainly has the potential for drama.

SEE ALSO:What to expect for Trump rally in Phoenix

Among the looming questions is whether Trump will pardon Arpaio, who was convicted of criminal contempt of court for ignoring a court order to halt his signature immigration patrols. Trump has said he was seriously considering a pardon for the 85-year-old lawman, who was among his first high-profile supporters.

Another question is whether Trump will go after Sen. Jeff Flake, the state's junior Republican senator who's running for re-election and has been one of the president's loudest GOP critics. Flake recently published a book in which he criticizes the direction of his party under Trump, as well as the president's pugilistic tone. Will Trump endorse a Flake challenger?

Some will also be watching Trump's tone in the wake of Monday night's policy speech on his strategy for the war in Afghanistan. Some were struck as much by his measured tone as his acknowledgment that he is changing course from his call during the campaign to withdraw from Afghanistan. Is this a lasting shift in tone or another quiet moment interrupting the bombast the American public has become accustomed to?

Finally, there's one place authorities hope to see no drama: the streets of downtown Phoenix.

This is Trump's first major public address since his tepid response to the death of a Charlottesville, Virginia, woman amid demonstrations by white supremacists was seen by many as a low mark for this White House.

Immigration activists are hoping to have thousands on hand to protest Trump's policies and, should it happen, an Arpaio pardon. Given there will be thousands of Trump's supporters on hand for the rally, it could be a volatile mix.

— Michael Squires

MONTINI:Will Trump trash McCain, Flake then pardon Arpaio? | ROBERTS:Trump headed to AZ to endorse Jeff DeWit? | EDITORIAL:Trump let North Korea control his next move

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