They don't actually need to cancel elections, they just need to bring enough into question to spend the results in their favor.
@allcaps-22.bsky.socialRepeat again for those in the back- Trump and the federal govt cannot cancel the elections. Elections are run by the states. The House of Representatives terms automatically expire and the new Congress is sworn in on January 4. If states don’t hold elections, they won’t have any Reps in Congress.