President Donald Trump¡¯s former national security adviser, Michael Flynn, said on Tuesday he knew lying to the FBI was a crime as he stood by his guilty plea in a case stemming from the investigation into possible collusion between Trump¡¯s 2016 campaign and Russia.

Flynn pleaded guilty in December 2017 to lying to FBI agents about his conversations with Sergei Kislyak, Russia ambassador in Washington at the time.

In a filing with the court, a lawyer for Flynn had noted that he was not warned during an FBI interview that lying would be a crime, but an attorney for Flynn told the court on Friday during a sentencing hearing that the retired lieutenant general was not entrapped.