Pelosi is smart to make this about McConnell. It doesn't matter if what she says is true.
Because of McConnell foolishly saying that he would be in "total coordination with the White House" ( why say it, man--just do it), Pelosi has got some credibility to say, "cover up, cover up, cover up!" over and over.
By making those comments, McConnell showed zero consideration for his vulnerable swing state GOP colleagues. It's easy to be flippant when you represent Kentucky. Collins, McSally, Ernst, Gardner et al are under pressure to give the pretense of a "fair" trial.