The Formal Charges: In July 2017, Papadopoulos was secretly arrested for lying to FBI investigators about his correspondence with foreign nationals with close ties to senior Russian government officials. His indictment was revealed to the public after he pleaded guilty in October 2017. In September 2018, Papadopoulos was sentenced to 14 days incarceration, 200 hours of community service and a $9,500 fine.
The Alleged Crimes: According to the indictment, Papadopoulos during an interview with the FBI misled investigators about the timing and the nature of his meetings and communications with the London-based professor and the Russian woman he was introduced to by Mifsud. Papadopoulos told investigators that he met and communicated with foreign nationals before his time with the Trump campaign when in fact they started interacting after he joined the campaign.
The Response: Since the indictment, Trump and senior officials from the campaign have distanced themselves from Papadopoulos. Trump called him in a tweet a "young, low-level volunteer" that "few people knew," White House press secretary Sarah Sanders said "no activity was ever done in an official capacity on behalf of the campaign" by Papadopoulos, and former senior Trump campaign adviser Michael Caputo has called him a "coffee boy."
Papadopoulos' wife Simona Mangiante told ABC News, however, that he "set up meetings with leaders all over the world" for senior campaign officials and was "constantly in touch with high-level officials in the campaign."
Papadopoulos' lawyer Thomas Breen told the court at the time of his sentencing that he was a "fool" swept up by the campaign, finding himself "at a young age, hanging with the big guys," and having developed "unbridled loyalty to Trump," but he "has taken his pounding" and has been cooperating with the Special Counsel's team.