Reason to rush the impeachment because the Democrats and others want to shut down the current Intelligence investigations into corruption?

Wrong. News hearings will call upon Rudy Julie Annie to testify under oath along with Pompeeo and Rick Purry.

The investigations will continue even after the impeachment. The need for expediency here is to address the election cheating problem before he uses it again to cheat in this upcoming election. Why allow him to commit another offense before calling him on his old offenses? Thats not the way crime prevention is suppose to work. 

They want to get the vote in before any more members of Congress decide to walk away from the Democratic Party.