They don’t need grounds to attempt such a thing and they have McCarthy by the ‘one vote to call confidence’ nuts,
They do of course need evidence to pull it off and they don’t have any.
It’s all toothless theater to distract from the real crimes and real trials.
Pity the Republicans didn’t take either of the two impeachment opportunities they had, they did not and now they are bound head to toe with a heavyweight crook who’s about to be tossed into the pond of Justice.
Going down with him, it’s the choice they made.