Presumptive Republican nominee Donald Trump will reportedly announce Indiana Gov. Mike Pence as his running mate, according to multiple media outlets.

The vice presidential pick, which will be made official during an event in New York City on Friday morning, was first revealed by Roll Call Thursday afternoon, citing a source close to the campaign.

According to the outlet, "Trump was reportedly impressed with Pence's calm demeanor, his experience on Capitol Hill ... and Pence's potential to assist Trump in governing."

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The New York Times also reported the news, though cautioned that some Republicans believe "the party's mercurial presidential candidate may still backtrack on his apparent choice."

IndyStar confirmed that Pence would drop his re-election bid to join the Trump campaign.

Republicans close to the campaign said earlier this week that the mogul had narrowed his shortlist to Pence, former House Speaker Newt Gingrich and New Jersey Gov. Chris Christie.

Trump met with the Indiana governor on Wednesday, sparking rumors that Pence would join his ticket. The billionaire was joined at the meeting by his daughter, Ivanka; son-in-law Jared Kushner; and sons Donald Trump Jr. and Eric Trump.

See more of Pence through the years:



23 PHOTOS Vice President Mike Pence through the years See Gallery Vice President Mike Pence through the years Rep. Mike Pence, R-Ind., Derek Karachner, Ian Slatter, Molly Jurmu, Mark Ahearn. (Photo By Tom Williams/Roll Call/Getty Images) Mike Pence, R-Ind., and Jeff Flake, R-Ariz., talk during the markup of the bill which would establish the Department of Homeland Security. (Photo by Scott J. Ferrell/Congressional Quarterly/Getty Images) (L-R) Rep. Mike Pence (R-IN), attorney Floyd Abrams, Sen. Mitch McConnell (R-KY), and attorney Kenneth Starr speak to reporters in the U.S. Supreme Court Plaza in Washington, D.C., September 8, 2003. Attorneys made arguments during a special session of the Supreme Court about the constitutionality of the McCain-Feingold campaign financing reform law. (REUTERS/Stefan Zaklin) Rep. Mike Pence, new head of the Republican conservative caucus, taken in his Hill office. Includes a bust of Ronald Reagan. (Photo by Robert A. Reeder/The Washington Post/Getty Images) Republican presidential candidate Donald Trump (R) and Indiana Governor Mike Pence (L) wave to the crowd before addressing the crowd during a campaign stop at the Grand Park Events Center in Westfield, Indiana, July 12, 2016. (REUTERS/John Sommers II) UNITED STATES - FEBRUARY 07: Mike Pence, R-Ind. (Photo By Douglas Graham/Roll Call/Getty Images) MEET THE PRESS Pictured: Rep. Mike Pence (R-IN) left, and Rep. Chris Van Hollen (D-MD) right, appear on 'Meet the Press' in Washington, D.C., Sunday, Feb. 21, 2010. (Photo by William B. Plowman/NBC/NBCU Photo Bank via Getty Images) U.S. Vice President-elect Mike Pence arrives at Trump Tower in Manhattan, New York City, U.S., December 13, 2016. (REUTERS/Andrew Kelly) President-elect Donald Trump takes the stage with Vice President-elect Mike Pence during a rally in Orlando, Fla., on Friday, Dec. 16, 2016. (Joe Burbank/Orlando Sentinel/TNS via Getty Images) Vice President-elect Mike Pence arrives at Trump Tower on December 15, 2016 in New York City. President-Elect Donald Trump continues to hold meetings with potential members of his cabinet at his office. (Photo by Spencer Platt/Getty Images) Tim Kaine, 2016 Democratic vice presidential nominee, left, and Mike Pence, 2016 Republican vice presidential nominee, speak during the vice presidential debate at Longwood University in Farmville, Virginia, U.S., on Tuesday, Oct. 4, 2016. Indiana Governor Mike Pence and Virginia Senator Tim Kaine arrive at tonight's debate with three main assignments: defend their bosses from attack, try to land a few blows, and avoid any mistakes showing them unfit to be president. (Andrew Harrer/Bloomberg via Getty Images) U.S. Vice President Mike Pence (L) takes the oath of office from Supreme Court Justice Clarence Thomas (R) as his wife Karen Pence holds the Bible, on the West Front of the U.S. Capitol on January 20, 2017 in Washington, DC. In today's inauguration ceremony Donald J. Trump becomes the 45th president of the United States. (Photo by Chip Somodevilla/Getty Images) Sergio Marchionne, chief executive officer of Chrysler Group LLC and Fiat SpA, left, speaks with Mike Pence, governor of Indiana, at the Chrysler Group transmission plant in Kokomo, Indiana, U.S., on Thursday, Feb. 28, 2013. Chrysler Group LLC, the automaker majority owned by Fiat SpA, will invest about $374 million and add 1,250 jobs at Indiana factories to boost output of eight-and nine-speed transmissions. (Daniel Acker/Bloomberg via Getty Images) UNITED STATES - JULY 25: Mike Pence--IND (Photo By Tom Williams/Roll Call/Getty Images) Reps. Jeff Flake, R-Ariz., left, and Mike Pence, R-Ind, share a laugh at a rally to support a House resolution, scheduled for a vote Thursday, that would require a list of earmarks and the names of lawmakers sponsoring them to be contained in committee and conference reports. The rally took place on Cannon Terrace. (Photo By Tom Williams/Roll Call/Getty Images) US Republican Representative from Indiana Mike Pence, gestures as he speaks during a press conference at the fortified Green Zone in Baghdad, 01 April 2007. Pence and a group of US Congressmen are on a visit to the war-torn country. (SABAH ARAR/AFP/Getty Images) Rep. Mike Pence, R-Ind., makes marks on the House health care bill as House Republicans gathered in the House Republicans Reading Room in the Longworth House Office Building on Tuesday, Nov. 3, 2009. (Photo By Bill Clark/Roll Call/Getty Images) U.S. Rep. Mike Pence (R-IN) speaks during a rally on Capitol Hill April 6, 2011 in Washington, DC. U.S. Rep. Michele Bachmann (R-MN), thought to be a contender for the 2012 presidential race, also spoke at the rally held on Capitol Hill by Americans for Prosperity in support of spending cuts. (Photo by Alex Wong/Getty Images) House Budget chairman Paul Ryan, R-Wisc., speaks with Rep. Mike Pence, R-Ind., as they arrive for a meeting of the House Republican Conference in the basement of the U.S. Capitol on Monday, July 25, 2011. (Photo By Bill Clark/Roll Call) Indiana Governor Mike Pence is seen at the 2015 IPL 500 Festival Parade on May 23, 2015 in Indianapolis, Indiana. (Photo by Michael Hickey/Getty Images) U.S. President Donald Trump shakes hands with Speaker of the House Paul Ryan (R-WI) while Vice President Mike Pence (C) looks on during a luncheon at the Congress of Tomorrow Republican Member Retreat January 26, 2017 in Philadelphia, Pennsylvania. Congressional Republicans are gathering for three days to plan their 2017 legislative agenda. (Photo by Bill Clark-Pool/Getty Images) US Vice President Mike Pence and Karen Pence dance during the Liberty ball at the Walter E. Washington Convention Center on January 20, 2017 in Washington, DC. (BRENDAN SMIALOWSKI/AFP/Getty Images) From left, First Lady Melania Trump, President Donald Trump, Major General Bradley Becker, Vice President Mike Pence, and his wife Karen Pence review the troops following the swearing in of Donald Trump as the 45th President of the United States on Friday, Jan. 20, 2017. (Photo By Bill Clark/CQ Roll Call) Up Next See Gallery Discover More Like This HIDE CAPTION SHOW CAPTION of SEE ALL BACK TO SLIDE

Pence was notably missing from the list of speakers at the Republican National Convention released Thursday morning, again heightening speculation he would be Trump's vice-presidential selection.

Despite the reports, Trump's presidential campaign chairman Paul Manafort appeared to pour cold water on the news, tweeting that "a decision will be made in the near future."

Re: @realDonaldTrump VP selection, a decision will be made in the near future and the announcement will be tomorrow at 11am in New York. — Paul Manafort (@PaulManafort) July 14, 2016

The 57-year-old legislator spent 12 years as a U.S. congressman before taking on the gubernatorial role. He came under national scrutiny in 2015 after signing the Religious Freedom Restoration Act into law. Critics claimed the law permitted discrimination against LGBT individuals.

Pence is a popular figure among conservatives with the potential to unify a divided Republican party. Earlier Thursday before the news broke, Speaker Paul Ryan praised his former House colleague, saying, "I'm a big fan of Mike Pence's. We're very good friends. I have very high regard for him."