I say, patience.
Let's wait and see the depth and breadth of what we find out by the time Mueller is done, and then we'll see how many votes there are in the Senate.
Let's see how many Senators up for reelection will play games if it comes to that point.
By the way, Cohen looked very relaxed after all this time, for the first time, as he came out of the courthouse. A man relieved, who has nothing more to hide.