Several key figures associated with President Donald Trump have pleaded guilty or were convicted of a range of offenses as part of Special Counsel Robert Mueller's probe:

Paul Manafort:Trump's 2016 campaign chairman is in the early stages of a 7 1/2-year prison term after being convicted and pleading guilty in two cases linked to financial corruption from his years of lobbying for pro-Russian interests in Ukraine.

Michael Flynn:Trump’s first national security adviser pleaded guilty to lying to investigators about his contacts with Russia’s then-ambassador to Washington, Sergey Kislyak, just before Trump assumed power, and is awaiting sentencing.

George Papadopoulos:The low-level foreign affairs adviser was jailed for 12 days after he pleaded guilty to lying to investigators about his Russia contacts.

FILE - Clockwise from top left, this combination of file photograph shows former Trump lawyer Michael Cohen, former National Security Advisor Michael Flynn, former campaign manager Paul Manafort, political consultant Roger Stone, former Manafort business associate Rick Gates, and former campaign aide George Papadopoulos.

Rick Gates:A business associate of Manafort’s and his deputy on the Trump campaign, Gates was a key witness against Manafort at his trial, after pleading guilty to conspiring with him in financial wrongdoing from their years as lobbyists for Ukraine. He is awaiting sentencing.

Michael Cohen:Trump’s one-time personal attorney pleaded guilty to helping Trump make $280,000 in hush money payments to two women, an adult film actress and a Playboy model, to keep them quiet before the 2016 election about alleged decade-old sexual encounters they claimed to have had with Trump. Cohen, headed soon to prison for a three-year term, also admitted lying to Congress about the extent of Trump’s efforts during the 2016 campaign to build a Trump skyscraper in Moscow, a time when candidate Trump was telling voters he had ended his Russian business ventures.

Roger Stone:The long-time Trump adviser and friend is awaiting trial on charges that he lied to Congress about his contacts with the anti-secrecy group WikiLeaks in conjunction with the release of emails hacked by Russian operatives from the computers of Democratic officials that were damaging to Trump’s 2016 opponent, Hillary Clinton. (VOA)