Peggy Noonan knows just how the President can get out of this mess.
Let's hope he'll listen, because the dynamic has become unwinnable. Every reassurance to the right bounces off like teflon because the Pres. ripped his pants insincerely calling them sexist and elitist and besides they've been Soutered, Stevensed, Warrened, Brennaned, etc. ad infinitum. At the same time those reassurances alienate the left.
There are no good moves remaining. The nomination is sunk unless pushed through via unseen coercion and sheer cussedness, which will please exactly no one and create a bunker mentality in the White House that will last a very long three years.