President Trump has upset gun right groups and shifted his Second Amendment politics after the fatal shooting of Alex Pretti in Minnesota.

Claims by Trump administration officials that the man fatally shot by a federal agent in Minneapolis lacked a right to possess a firearm and that his killing was justified are being dismissed by legal experts and assailed by gun rights groups ordinarily aligned with the president.

The video shows a federal officer searching Pretti's body after shots were fired, believing he still had a gun.

Two federal officers fired their guns during Alex Pretti’s fatal shooting, according to an initial review by the Department of Homeland Security that was obtained by NBC News.

The National Rifle Association and others have argued citizens need guns to fend off government. The killing of Alex Jeffrey Pretti, who carried a pistol, set off debate.

MINNEAPOLIS — The Department of Homeland Security is investigating whether an errant shot from Alex Pretti’s handgun — after it was taken off of him — caused Border Patrol agents to think they were being fired on,