MyPillow CEO Mike Lindell attends a "Save America" rally in Warren, Michigan, on October 1, 2022.

The Supreme Court on Monday rejected MyPillow CEO Mike Lindell's bid to fend off a defamation lawsuit the voting machine company Dominion Voting Systems filed over his far-fetched claims about the 2020 presidential election.

The justices' decision not to hear the case means a federal judge's ruling in August 2021 that allowed the lawsuit to move forward remains in place.