A North Dakota man has pleaded guilty to planning to use a stolen forklift to flip President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE’s limo.

Gregory Lee Leingang, 42, pleaded guilty Friday to federal charges related to an incident in September 2017, when he was arrested for stealing a forklift from a restricted building and attempting to enter Trump’s motorcade route.

U.S. Assistant State's Attorney Brandi Sasse Russell said that Leingang attempted to steal the forklift in an effort to “kill the president.”

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"The intent was to basically try to get to the limo, flip the limo and get to the president and he wanted to kill the president," Sasse Russell said, according to the Grand Forks Herald.

Trump visited Mandan, N.D., in September 2017 to speak on a tax reform at an oil refinery.

Leingang, who also pleaded guilty to separate charges of burglary and setting two fires on the same morning he stole the forklift, has been sentenced to a total of 20 years in state prison. A federal sentencing hearing is set for February.

Leingang’s public defender said that he was “suffering a serious psychiatric crisis” during the incident, according to the Grand Forks Herald.

He is seeing a psychiatrist and therapist in prison, according to the newspaper.