He's playing a weak hand. With the House Republican's divided and a Senate, for all practical purposes, evenly divided sending anything to the Senate at this time would not be a wise move. Doubtful the Senate would impeach Mayorkas. This needs to be a lesson to the Republicans in the swing states... The next 4 years could find a Democratic President, House and Senate.... And we just think things are bad now.
The Senate is currently composed of 49 Republicans, 48 Democrats, and 3 independents; all the independents caucus with the Democrats. The current leaders are Senators Chuck Schumer (D) of New York and Mitch McConnell (R) of Kentucky.