US President Donald Trump's former national security advisor Michael Flynn asked a judge on Tuesday for permission to withdraw his guilty plea in the Russia election interference probe.
In a big reversal, Flynn's lawyers argued that prosecutors violated a plea agreement that he struck with them because they demanded he give false testimony.
Flynn, a retired US Army lieutenant general, lasted only 22 days in the job in the early days of the Trump's administration.
He was being investigated for his contacts with Russians when he was removed and eventually pleaded guilty to lying to the FBI.