Trump has every reason to be confident the election will go his way, considering the enthusiastic turnout among Republican voters and the solid campaign he ran. There's no reason for him to have any regrets, unlike his opponent, whose foibles probably cost her a chance to beat Trump.
There's no reason to believe anything Trump said, considering he said he would accept the result in a "fair" election but then without evidence spoke about having a big lead entering Election Day andwhile againspreading spread conspiracy theories about troubling voting machines. The lying never ends with Trump.
There's a 56% chance that the 2024 presidential election will also be considered fraudulent by the losing party, according to the Metaculus prediction community.