READ: Michael Flynn defense team sentencing memo asking for no prison time

WASHINGTON, DC - FEBRUARY 10: National Security Adviser Michael Flynn sits before U.S. President Donald Trump and Japanese Prime Minister Shinzo Abe hold a joint press conference at the White House on February 10, 2017 in Washington, DC.  (Photo by Mario Tama/Getty Images)

(CNN)Former national security adviser to President Donald Trump Michael Flynn has asked a federal judge to spare him from prison time, according to his defense team's memo before his sentencing.