President Donald Trump said he pardoned Colorado clerk Tina Peters, but legal experts said a president cannot pardon state convictions.

Trump lashed out at Democrats in his Truth Social post announcing his pardon of Peters, who is currently serving a 9-year prison sentence.

President Donald Trump announced Thursday he is granting Tina Peters a full federal pardon, which is likely to increase the pressure campaign to free the former Colorado clerk from state prison even though he cannot erase her state charges.

Doug Spencer, a constitutional law professor at the University of Colorado, called it “sad that our president hasn’t read or doesn’t understand a basic tenet of the U.S.