I would be surprised if the impeachment wasn't a package deal, considering the blood in the streets if Pence pardoned Trump ala Ford. There's also the convenient usage of the campaign as the leading excuse, which could easily be used to lump Pence in.
In the case of a Democratic house, the only reason I can think of not to simultaneously remove Pence would be the massive and lasting backlash that could be expected if one party impeached both the president and vice president of the other party, and then replaced them with a congressperson of their choice and party (unless the Dems made a Republican the speaker, but that would obviously be even weirder). Something as extreme as the double impeachment sounds like "road to civil war" territory (not that I'd be against impeaching both).
Trying to circumvent the line of succession like that would generate cries of 'COOOOUUUUUPPPP!!' for sure.
They'd have to find Pence guilty of something, but he has been suspiciously free of the taint from the scandal, either through sheer dumb luck or a concerted effort to protect him from the effects. Theres just too much going on, especially during the transition, that he'd be out of the loop, especially given that he was
heading the transition.
I would be surprised if the impeachment wasn't a package deal, considering the blood in the streets if Pence pardoned Trump ala Ford. There's also the convenient usage of the campaign as the leading excuse, which could easily be used to lump Pence in.
There's also the likelihood of Pence being, at the very least, complicit to a criminal degree. Depending on what Mueller finds, it could be very difficult to either party to justify removing the one but not the other.
There's also that a President Pence would inherit a country wildly beyond his ability to govern, at least not without his human mask slipping a bit from stress and revealing the roiling vortex of madness and hatred beneath. Republicans could well want him out of the way before he, like Moore, becomes emblematic of "family values" as a whole; they got into this for the bribes, not to make a theocracy.
As I said, he seems suspiciously free of the scandal so far, which can only be explained by either sheer dumb luck or an actual effort to protect him from it. Which would imply that the team and Trump knew they were doing something that could get them into trouble.
Also, didn't Bill Clinton go straight from Arkansas Governor to President? editwhiletyping: Checked wiki and yes he did. He did pretty damn well for just being a Governor, so, I wouldn't say wildly beyond his ability to govern.
edit2: Ronald Regan did the same too, though there was a several year gap for him.