Personally, I have no idea whats stopping them. It's frustrating and I've said many times that todays GOP have no balls. At this point, he's gone waaaaay beyond impeachable offenses. A criminal in every sense of the word.
Pelosi said "impeachment was off the table" in 2006, I believe. I think that showed the agreement that "despite torture and some other things which might be legally questionable, we will STFU and let things slide, but you have to let our guy go too".
I bet we'll never see a Nixon or Clinton style impeachment again. The world is just too competitive, it just makes our country look too weak. Obama wasn't born here, he let F&F and Benghazi happen... at the very least, there's grounds for LOOKING AT impeachement... but as far as issa is concerned, it's off the table too.
Presidents are gonna get away with it. No matter the party. I'd say impeachment will probably never happen again. Issa has never even SAID the word, right? lol. obama's given him plenty of grounds for at least looking into . Nope, dude won't touch it. Newt 1998 would have had Obama deported by now lol. New GOP class has no balls... they're too busy with the RINO vs TP civil war.