No, Trump should not...the Speaker of the House or the AG should. (Although we know the AG is tainted)
The AG has zero credibility and has recused himself from the issue; the Speaker is the leader of the Republican Party who could if so inclined draft articles of impeachment and let the Senate Decide, That he won't is too fold: He is ambitious and wants the oval office for himself, and thus will not offend other Republicans by doing so; and knows he will lose the election in 2018 if he does anything to upset the control the R's have now.
Republicans don't have a snowballs chance in hell of retaining their seats in 2018. It's going to be a blood-bath similar to what happened to Democrats in 2010. The only thing they can do is save their "honor" by removing Trump from office asap--so they can make a comeback down the road.
Republican town halls are getting very, very nasty
THE LESSONS OF THIS ELECTION CYCLE hopefully will remain for decades to come and there are many lessons to be learned.
A. When you have politicians promising the "Moon & the Stars" and it sounds too good to be true it probably is.
B. That candidates are required to tell and campaign on TRUTH--not made up bullshit.
C. That they should have honor, respect & dignity and respect for everyone in this country not just appeal to certain segments of the population.
D. That candidates should not prey on ignorance to get elected.
E. That throwing your vote away by casting a 3rd party vote is really not a good idea.
F. That we really do not elect Kings and Dictators in this country.
G. That if a news article sounds unbelievable--it probably is.
H. That Wikileaks is NOT a friend to this nation.
I. Russia is NOT a friend.
Finally--
That basic CIVICS makes a come back in every school across this country. So people realise there are 3 branches of government--the Executive, the Legislative, & the Judicial branch and they all have their OWN authority on certain issues, regardless of what any candidate is campaigning on.