If Trump survives politically and is re-elected to serve another four years, Congress likely would have nowhere left to go in the event of another scandal, legal and political experts say — not because the House couldn’t impeach him again, but because it might be politically impossible to do so…

A second impeachment would risk “a political blowback in the midterm elections if Democrats are seen as nothing but a political party that wants to railroad, witch hunt, whatever you want to call it, this president,” said Jim Robenalt, an Ohio-based lawyer who created a continuing legal education program with former White House counsel John Dean about Watergate…

There is one unlikely scenario that could change Democrats’ calculations: If Trump won re-election but Republicans lost their majority in the Senate, making the threshold for conviction on impeachment theoretically easier.