Trump Says He Has Seen No Evidence of Cheating in the Election, but Nonetheless Sows Doubts

With early voting underway in many states, former President Donald J. Trump acknowledged Monday that he had seen no signs of cheating, even as he continued to sow doubts about the integrity of the election during a campaign swing through North Carolina.

Mr. Trump has long relentlessly contended that Democrats are conspiring to rig the election on Nov. 5, suggesting that his support is so strong that fraud is the only way he might lose. His accusation, for which he has not provided any details or proof, builds on his lie that he won the 2020 election. That claim is now at the heart of two criminal cases that accuse him of engaging in illegal activity in his effort to overturn the election four years ago.