Former Trump campaign adviser George PapadopoulosGeorge Demetrios PapadopoulosTale of two FBI cases: Clinton got warned, Trump got investigated Trump says he would consider pardons for those implicated in Mueller investigation New FBI document confirms the Trump campaign was investigated without justification MORE will be sentenced on Sept. 7, according to the U.S. District Court for D.C. calendar.

The former campaign adviser pleaded guilty last year to lying to FBI agents in special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE’s probe into possible collusion between the Trump campaign and Russia.

Papadopoulos was charged with making false statements to investigators about conversations he had with a foreign professor, who told him that Russians had thousands of emails with damaging information on Hillary Clinton Hillary Diane Rodham ClintonDemocratic groups using Bloomberg money to launch M in Spanish language ads in Florida The Hill's Campaign Report: Presidential polls tighten weeks out from Election Day More than 50 Latino faith leaders endorse Biden MORE.

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Prosecutors estimated in Papadopoulos's plea agreement that he will likely serve no more than six months in jail and face a fine between $500 to $9,500, given that he isn't found to have committed any more crimes.

Mueller had requested the Sept. 7 sentencing date in a court filing last week.

The Trump campaign has claimed that Papadopoulos was a low-level staffer, labeling him a “coffee boy.” His now-wife rebutted those statements last year, saying that he was “constantly in touch with high-level officials in the campaign."

His wife, Simona Mangiante Papadopoulos, has recently made public pleas to President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE to pardon her husband, saying he was “dedicated and committed” to the campaign.

“So I trust and hope and ask to President Trump to pardon him. I hope he will,” she said during an appearance with Fox News’s Tucker Carlson earlier this month.