Rick Gates arrives at federal court in Washington, D.C., on Friday. Gates, a former top adviser to President Donald Trump’s campaign is scheduled to plead guilty in the special counsel’s Russia investigation to federal conspiracy and false statements charges.
Rick Gates arrives at federal court in Washington, D.C., on Friday. Gates, a former top adviser to President Donald Trump’s campaign is scheduled to plead guilty in the special counsel’s Russia investigation to federal conspiracy and false statements charges. — AP Photo/Susan Walsh

WASHINGTON — A former top adviser to President Donald Trump's election campaign has formally pleaded guilty to federal conspiracy and false statements charges in the special counsel's Russia investigation.

The plea by Rick Gates is a strong indication that he is planning to cooperate with special counsel Robert Mueller's investigation as it continues to probe the Trump campaign, Russian election interference and Gates' longtime business associate, Paul Manafort.

The 45-year-old Gates made the plea at the federal courthouse in Washington. It comes a day after Gates and Manafort were indicted in Virginia on new charges of tax evasion and bank fraud. Manafort, who is Trump's former campaign chairman, has said he is innocent.

A court filing earlier today showed Gates agreed to plead to charges accusing him of conspiring against the U.S. government related to fraud and unregistered foreign lobbying as well as lying to federal authorities in a recent interview.

The indictment in Virginia was the second round of charges against Gates and against Manafort, who has denied any wrongdoing. The two men were initially charged last October with unregistered lobbying and conspiring to launder millions of dollars they earned while working on behalf of a pro-Russian Ukrainian political party.

Gates’ decision marks the fifth publicly known guilty plea in the special counsel probe into possible collusion between the Trump campaign and the Kremlin during the 2016 campaign.

The plea also comes quickly on the heels of the stunning indictment last week that laid out a broad operation of election meddling by Russia, which began in 2014, and employed fake social media accounts and on-the-ground politicking to promote Trump’s campaign, disparage Hillary Clinton and sow division and discord widely among the U.S. electorate.

The charges to which Gates is pleading guilty don’t involve any conduct connected to the Trump campaign. They largely relate to a conspiracy laid out in his indictments, but they do reveal that Gates is accused of lying to the FBI during an interview earlier this month.

The court papers accuse Gates of lying about a 2013 meeting involving Manafort, a lobbyist and a member of Congress. Gates said the meeting did not include discussion of Ukraine, when in fact prosecutors say it did. The court filing doesn’t name the lobbyist or the lawmaker.

Gates’ lawyers filed a motion this month indicating they had reached “irreconcilable differences” with him. His new lawyer, veteran Washington white-collar attorney Thomas Green, formally took over Thursday. Green did not respond to a request for comment today.

As Gates was kept on house arrest, he frequently pleaded with U.S. District Judge Amy Berman Jackson for leniency to attend sporting events with his four children. His court filings gradually began to show the strain the case was placing on him and his family.

On Thursday night, Gates e-mailed a brief letter to friends and family, telling them of his decision to plead guilty, Republican lobbyist Jack Burkman said.

“It’s sad,” said Burkman, who had hosted a fundraiser for Gates’ legal defense fund.

Also today, Gates asked a judge’s permission to travel with his children to Boston for spring break so they could “learn about American history in general, and the Revolutionary War in particular.”

Depending upon the terms of his plea agreement, Gates could become a key cooperator for Mueller with intimate knowledge of Manafort’s years of political consulting work in Ukraine as well as other events that have sparked the interest of federal investigators.

Gates had access at the highest levels of the campaign at the same time that Manafort, Donald Trump Jr. and Jared Kushner met with a team of Russians in Trump Tower in June 2016. He was also in the top ranks of the campaign when then-Sen. Jeff Sessions held a pair of undisclosed meetings with Russian ambassador to the U.S. Sergey Kislyak.

For a few months in 2016, Gates was indispensable to Trump, leading the ground effort to help Trump win the Republican nomination and flying from state to state to secure Republican delegates in a scramble that lasted all the way until the Republican National Convention in Cleveland.

But his power and influence waned once Trump fired Manafort in August 2016 after The Associated Press disclosed how Gates and Manafort covertly directed a Washington lobbying campaign on behalf of Ukrainian interests.

Gates survived his mentor’s ouster and worked through the election on Trump’s inaugural committee — but among Trump aides he earned the nickname “the walking dead.”

Gates also worked briefly with the outside political groups supporting Trump’s agenda, America First Policies and America First Action, but was pushed out of that job last year.

Gates was working for Tom Barrack, a close friend of Trump’s, when he was indicted last October.

Associated Press writer Eric Tucker contributed.