Allen was charged with attempting to assassinate the president of the United States, a charge that carries a sentence of up to life in prison if convicted.

He was also charged with transportation of a firearm and ammunition through interstate commerce with intent to commit a felony, which carries a sentence of up to 10 years in prison if convicted.

The third count Allen was charged with was discharge of a firearm during a crime of violence, which can carry a sentence of an additional term of mandatory minimum of 10 years.