Better the devil you know...

Remember the theory that it was in fact a good job that the attempted assassination of Hitler failed?  The logic being that whoever would have replaced him would probably have done a much better job and prolonged the course of the war, if not actually changed it.  Well it appears the Democrats in the US now have a similar dilemma regarding the best thing for them to do now that they have some clout after the mid-term elections.  There are those who are calling for immediate attempts to impeach Trump, but on the other hand there are those who are advising caution on the grounds that he is doing a much better job for their cause by staying where he is and doing what he does