Why John Dean?

Well, here's an old name from out of the woodwork! He doesn't work for Trump, he's not in the Administration, he has nothing to do with this President.  The only reason I can think of for that fool Nadler to have him testify is that he hopes Dean will bring back memories of the Watergate scandal, and a Republican President who would have been impeached if he hadn't resigned. The Dems must figure that, for those of us old enough to have watched the Watergate hearings on TV, the following should be inferred:

Nixon = Trump
Watergate = Russiagate
Resignation = Impeachment
Republicans = Criminals

Sorry, but that kind of Democratic math doesn't add up at all. The only cancer in the White House these days is caused by the leakers and staffers who want to invalidate this Presidency.