Trump repeatedly made comments condemning the treatment of Jan. 6 defendants during his 2024 presidential campaign but has maintained a vague approach to his plans, not specifying any number of pardons he may issue as he returns to the Oval Office at noon on Jan. 20.

At a news conference, the president-elect sought to blame the F.B.I. for the riot at the Capitol, echoing a conspiracy theory that is widespread on the right.