I did not know this. They could impeach him again if the first one doesn’t take.

Impt note on future: If the Senate doesn’t vote to convict Trump, or tries to monkey w his trial, he could of course be retried in the new Senate should he win re-election. Double jeopardy protections do not apply. And Senators voting on impeachment in the next months know this.

— Neal Katyal (@neal_katyal) December 5, 2019