It won't finish on Tuesday. And each state has to canvas the vote and the governors confirm the electoral college votes. (You remember the term "fake electors?") But we should know within a day or two, though the battles in the courts are bound to take a while. The result should be the same (last time Trump tried the court route he lost 60 of 61 cases, and the one he won was meaningless.)

In Bush V. Gore, Gore won the popular vote, it came down to Florida and then the US Supreme Court. If that were to happen again, we're all screwed.