Republican Representative French Hill just gave away the game.

“We need to shut the border.… The president could take executive action to do it today—doesn’t need more money. It needs action, and this is what’s disappointing to people, and that’s why Mayorkas is gonna pay this public relations price by being impeached for the first time since 1876,” Hill said.
Notably absent from Hill’s explanation was any description of high crimes and misdemeanors committed by Mayorkas. Hill all but admitted that, with the impeachment, Republicans are aiming to make Mayorkas the face of their anti-Biden, anti-immigrant campaign, despite his having not committed impeachable offenses.”