Condemning the nastiness of Republican politics in the era of President Trump, Arizona's junior senator Tuesday announced he will serve out the remainder of his term but will not seek re-election next year.

The bombshell, which Sen. Jeff Flake, R-Ariz., intended to detail Tuesday afternoon on the Senate floor, will further roil Republican hopes of keeping the party's 52-seat Senate majority in the midterm elections of Trump's first term when the president's party historically loses seats in Congress.

It also likely will upend the race for Flake's seat.

Flake, one of the Senate's more prominent Trump critics, has been struggling in the polls for at least a year.

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He told The Arizona Republic ahead of his announcement that he has become convinced "there may not be a place for a Republican like me in the current Republican climate or the current Republican Party."

Flake, 54, said he has not "soured on the Senate" and loves the institution. But as a traditional, libertarian-leaning conservative Republican, he is out of step with today's Trump-dominated GOP.

"This spell will pass but not by next year," Flake said.

Republican primary voters have an overwhelming support for Trump's positions and "behavior," Flake said. One of their top concerns is whether a candidate is with the president or against him.

While Flake said he is with Trump on some issues, on other issues he is not. And Trump definitely views him as a foe, having denounced Flake publicly and called him "toxic" on Twitter.

"Here's the bottom line: The path that I would have to travel to get the Republican nomination is a path I'm not willing to take and that I can't in good conscience take," Flake told The Republic in a telephone interview. "It would require me to believe in positions I don't hold on such issues as trade and immigration, and it would require me to condone behavior that I cannot condone."

As of Sept. 30, Flake's campaign had $3.4 million on hand.

He has continued to raise money. As recently as Thursday, former Secretary of State Condoleezza Rice headlined a fundraiser for him in Arizona.

Flake said he has ruled out running as an independent rather than a Republican because he doesn't think it is a viable strategy. He also said he has no intention of making a presidential run.

Kelli Ward, a former state senator from Lake Havasu City who lost her primary challenge last year against Sen. John McCain, has emerged this year as the top GOP alternative to Flake.

But other names have been mentioned as possibilities: Arizona State Treasurer Jeff DeWit; Robert Graham, former Arizona Republican Party chairman; and Jay Heiler, Arizona Board of Regents member. Lesser-known Republicans Craig Brittain and Nicholas Tutora also have filed paperwork with the Federal Election Commission and are running.

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Flake's exit is sure to prompt bigger Arizona Republican names to take a fresh look at the Senate race.

Steve Bannon, Trump's controversial former White House strategist, has embraced Ward as part of his national "open revolt" against Senate Majority Leader Mitch McConnell, R-Ky., and the GOP establishment. But other Republicans have warned that Ward is a weak candidate whose nomination would jeopardize GOP chances of holding Arizona's Senate seat.

The winner of the Aug. 28 Republican primary could face Rep. Kyrsten Sinema, D-Ariz., considered the front-runner in the Democratic primary.

"It’s been an honor to know and serve with Jeff," Sinema said in an emailed statement. "He is a man of integrity and a statesman who is true to his convictions – an Arizonan through and through.”

Flake said he gave McCain a heads-up about his decision.

“Of course, he’s a great and honorable man. I’m disappointed," McCain said. “I don’t know if the party has changed."

Senate Minority Leader Chuck Schumer, D-N.Y., praised Flake as "one of the finest human beings I've met in politics."

"He is moral, upright, and strong and he will be missed by just about everybody in the Senate," Schumer said in a written statement.

Late last month, The New York Timesquoted Bannon, now executive chairman of Breitbart News, as saying if Flake "doesn’t get a better poll in the next 30 days, you’re going to see him step down or the establishment is going to make him."

RealClear Politics has only one publicly available poll listed. The JMC Analytics survey, conducted Aug. 26 and 27, showed Ward with 47% of likely Republican voters vs. Flake at 21% and 29% undecided. It had an error margin of plus or minus 4.4 percentage points.

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Flake said he felt no pressure from McConnell or establishment Republicans to quit the race and insisted that he's not bothered by the thought that Trump and Bannon will crow victory.

"They can say whatever they want to say," Flake said.

Flake publicly announced his intentions in a Senate floor speech at 3:20 p.m. ET.

In his prepared remarks, Flake gave a blistering critique of the "coarseness of our national dialogue" that has defined the Trump era, saying it should never become "the new normal."

We must never regard as 'normal' the regular and casual undermining of our democratic norms and ideals. We must never meekly accept the daily sundering of our country — the personal attacks, the threats against principles, freedoms, and institutions, the flagrant disregard for truth or decency, the reckless provocations, most often for the pettiest and most personal reasons, reasons having nothing whatsoever to do with the fortunes of the people that we have all been elected to serve.



None of these appalling features of our current politics should ever be regarded as normal.

Throughout his 17-year political career, Flake has been a champion for comprehensive immigration reform. However, Congress has been unable to come to terms on the issue, and Flake's bipartisan work on legislation in the House and Senate alienated many grass-roots conservative activists who consider a pathway to citizenship for undocumented immigrants to be amnesty.

Shortly after winning his Senate seat in 2012, he joined the bipartisan “Gang of Eight,” which in 2013 collaborated on a plan to increase border security and establish a pathway to citizenship for an estimated 11 million illegal immigrants in the country at the time. It passed the Senate but the Republican-controlled House of Representatives would not take it up.

Flake served six terms in the House starting in 2001.

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Flake has sparred publicly with Trump since Trump emerged as a presidential contender in 2015. He refused to endorse or vote for Trump, and during the campaign was a frequent critic of Trump's tone and tenor and key policy proposals, such as a border wall.

Flake further antagonized Trump and the president's supporters this summer by publishing a book, Conscience of a Conservative: A Rejection of Destructive Politics and a Return to Principle, that took the Republican Party to task for embracing protectionism, nationalism and other tenets of "Trumpism" at the expense of traditional Goldwater-Reagan GOP values.

Sen. Bob Corker, R-Tenn., an ally of Flake's who also has been publicly fighting with Trump, announced Sept. 26 that he would not seek a third Senate term.

Something of a political maverick, Flake routinely angered fellow Republicans by highlighting their spending of taxpayer money on parochial priorities.

While in the House, Flake’s office ridiculed questionable pork projects with a series of “Egregious Earmark of the Week” news releases that usually included corny jokes and bad puns.

In 2006, Flake was profiled by CBS’ 60 Minutes in a flattering segment that compared him to the principled Jimmy Stewart character in the classic 1939 movie Mr. Smith Goes to Washington. His reform efforts are credited with helping lead to an earmark moratorium on Capitol Hill.

"If I'm remembered as the guy who killed earmarks, that's a great thing," Flake told The Republic in 2012.

Flake took up other fights during his years on Capitol Hill.

Flake was a free-trader who believed that the economic embargo against Cuba, which dated to the Kennedy administration and was part of the U.S. effort to stop dictator Fidel Castro’s brand of communism from spreading to other countries in the region, had long ago outlived its usefulness. Flake worked for years to ease travel restrictions to Cuba, usually siding with Democrats on the issue, and early in the 2000s, drawing the ire of President George W. Bush’s administration and House GOP leaders.

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He found an ally on the Cuba issue in President Obama.

He also worked with Democrats on legislation aimed at strengthening protections for civil liberties.

In 2006, Flake helped stop powerful Rep. Tom DeLay, R-Texas, who was facing criminal prosecution at the time, from ever returning to his job as House majority leader.

In its November 2008 issue, Esquire magazine honored Flake as one of the 10 best elected officials in Washington.

"A true conservative, Flake is as rare as the dodo," the magazine said. "Republicans should learn from him, and liberals and libertarians will find in him a strong privacy-rights ally."

By withdrawing from his re-election race, Flake is breaking from Arizona's tradition of long-serving U.S. senators, including Democrat Carl Hayden and Republicans Barry Goldwater and McCain.

Only one other senator from Arizona served just a single six-year term: Republican Ralph Cameron, who was elected in 1920 and ousted by Hayden in the 1926 election.

Contributing: Ronald J. Hansen, The Arizona Republic, and Eliza Collins, USA TODAY. Follow Dan Nowicki on Twitter, @dannowicki