President Donald Trump is set to address the nation on Thursday night on topics he said will include elections and voting machines, suggesting he is likely to revisit some of the unproven claims he has previously made about Republican losses, particularly his own in 2020.

Trump's fixation on his loss to Democrat Joe Biden six years ago, and the long-debunked theories he has circulated about it, are something he still brings up regularly when discussing other subjects. However, elevating these deeply political and conspiratorial topics to a presidential primetime address underscores the lengths to which Trump has used his second term both to move past norms and to revisit old grievances.

Trump has offered only vague details about the address, scheduled for 9 p.m. When asked by a reporter on Tuesday whether it would concern "election machines and integrity," Trump said it would "concern that subject" and "we'll have a couple of other things to say also."

White House press secretary Karoline Leavitt said earlier Thursday that "President Trump will deliver a major address to the nation on protecting the integrity of our elections. And we encourage every American to tune in."

She did not offer many details but said that what the president plans to say "will shock you if you have an honest eye listening to the president tonight" and will make the case that the US will "need to make some adjustments moving forward," including a strict voter ID bill he has been pushing.