May 11 (UPI) -- Cole Allen, the man accused of attempting to assassinate President Donald Trump during the White House Correspondents' dinner last month, pleaded not guilty Monday.
The 31-year-old's public defender entered his not guilty plea in a federal court in Washington, D.C., Monday morning. Allen pleads not guilty to all four charges against him.
Allen is charged with attempting to assassinate the president, transporting a firearm and ammunition through interstate commerce with the intent to commit a felony, discharge of a firearm during a crime of violence and assault of a federal officer with a deadly weapon.
The attempted assassination charge carries a potential sentence of life in prison.
Allen was arrested after shots were fired at the Washington Hilton on April 25, causing the White House Correspondents' Association dinner to abruptly end. A U.S. Secret Service officer was shot but was wearing a bulletproof vest and survived.
