Lawyers for George Papadopoulos ask to withdraw from his case as he rants on Twitter about being framed

Attorneys for former Trump campaign adviser George Papadopoulos have asked to withdraw from his case.

Thomas Breen and Robert Stanley filed a motion Tuesday asking to withdraw from the case, saying Papadopoulos had hired at least one other attorney to represent him going forward in the special counsel probe.

Papadopoulos was sentenced in September to 14 days in prison after pleading guilty to lying to FBI agents investigating his contacts with Russian nationals during the 2016 campaign.

But since he was sentenced, Papadopoulos has frequently claimed on Twitter that he was framed by British and Australian intelligence as part of a plot to undermine the Trump campaign, but he hasn't provided any evidence.

Papadopoulos, who joined the Trump campaign as a foreign policy adviser in March 2016, pleaded guilty in October 2017.

He agreed to cooperate with special counsel Robert Mueller's investigation, which has resulted in the guilty pleas of other top campaign officials.

Papadopoulos told investigators he was contacted by Maltese professor Josef Mifsud shortly after joining the campaign, and they met in Rome and London to discuss allegedly damaging evidence against Hillary Clinton.

A lawyer associated with Mifsud, who has not been seen publicly since November 2017, said the professor would like to testify before the U.S. Senate.