From Heather Cox Richardson’s most recent Letters from an American:

But, although 62% of American voters say the election is “over and settled” and it’s “time to move on,” Trump continues to insist that he won the election. In the face of the Electoral College confirmation of Biden’s win, this position increasingly seems a ploy to raise money. Even as the Electoral College was voting, the Trump campaign filed yet another lawsuit challenging the outcome of the election.

It has lost 59 of 60 court cases, and the Supreme Court last week refused to hear a case in which Trump planned to argue that mail-in voting in swing states that voted for Biden—but not the states that voted for him—injured Republican voters in Texas.