I would have to think that unless some far more recent issue where actual charges could be brought, this is a huge longshot. Not to mention that it could be incredibly costly to the Democrats if it has even the whiff of 'just because' partisan politics.
Same reason Democratic leadership won't discuss impeachment for Trump.
I mean, he's already demonstrably lied under oath, right?
Or is delaying any appoint until midterms less far-fetched than I'm assuming?