Investigating corrupt democrats is now an impeachable offense.
While that may be the case, look at what Trump did here.
He suggested looking at the actions of corrupt politicians. As long as you weren't blatant and had freezers full of cash, influence peddling was PERFECTLY ok in Washington.
Nothing was EVER done about Biden, Pelosi, Reid, Waters, (I can keep going). I'm sure there are Republicans who also got rich
from being in politics, but those are the egregious examples I know of.
What Republican has ever talked about that corruption? WE ALL KNOW they are corrupt, but the Republicans never bring it up.
That's why they are angry. Trump is going after THEIR meal ticket.