The Vichy Republicans are the only ones congratulating him. In short, they were RINOs from the beginning. Dismissing your opposition and trying to stop an investigation is the surest way of proving you've got something to hide.
It can be confusing because the Democrats are now the party of the rich and affluent.
That, again, is just sour grapes. Let the investigations happen, nothing will come of it, just like the amount of evidence he had to make the allegations to begin with. Oh, and speaking of things to hide, what about Trump's tax returns? As much as he may be smarting about losing the election, being a one term president, being impeached and losing the popular vote, he's going to lose his bubble of presidential immunity as well.
That's not good for him, considering the amount of court cases he's likely to be facing once he's out of the WH...