President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE’s longtime personal attorney, Michael Cohen, reportedly surrendered to the FBI on Tuesday ahead of an expected guilty plea to charges of tax fraud, bank fraud and campaign finance violations.

The Washington Post reported that Cohen turned himself in to the FBI in New York City just hours before he was scheduled to make a 4 p.m. court appearance. The federal prosecutor handling Cohen's case in the Southern District of New York is expected to make comments following the hearing.

CNBC captured video shortly before 2 p.m. of Cohen entering a building in Manhattan that houses FBI offices, among other tenants.

Moments ago: Former Trump lawyer Michael Cohen seen entering FBI New York office as NBC News reports that he's reached a plea deal. https://t.co/KbtozqtTkU pic.twitter.com/7o3uU4PirA — CNBC Now (@CNBCnow) August 21, 2018

Cohen's decision to turn himself in marks a stunning fall for a man who was once one of the president's oldest and closest confidants.

ADVERTISEMENT

It's not yet clear if Cohen will cooperate with federal investigators as part of his plea deal, but it could lead to major legal implications for Trump, depending on the specifics of the charges and the extent of the agreement.

Cohen allegedly coordinated "hush money" payments to Playboy model Karen McDougal and adult-film star Stormy Daniels, both of whom allege they had affairs with Trump more than a decade ago.

While Cohen has been fiercely loyal to the president, vowing in a September 2017 interview that he would “take a bullet” for Trump, signs in recent months have pointed toward the possibility he would cooperate with prosecutors.

He said in an interview last month that his "first loyalty" is to his family and the country, not the president.

It was later revealed that he recorded a conversation with Trump in which the two men discuss possibly purchasing the rights to the McDougal's account of her alleged affair with Trump in 2006 and 2007.

After CNN aired audio of that recording, Trump and his personal attorney in the Russia investigation, Rudy Giuliani, launched a wave of attacks on Cohen's credibility.

"The man is a pathological manipulator, liar. I didn't know that," Giuliani said last month after the tape aired. "I knew nothing bad about Michael Cohen until all of this started to happen in the last couple weeks."

"What kind of a lawyer would tape a client? So sad!" Trump tweeted.