I have closely examined the question and have concluded that Congress does not have authority to extend the impeachment process to officials who are no longer in office.
So there!
-PJ
Nancy Pelosi called for the House to vote whether they "THOUGHT" President Trump should be impeached and a majority said "yes"
It was NOT an impeachment process, it was a kangaroo determination that all democraps and ten RINO's didn't like President Trump