Licking the wounds that Walker incurred you mean :-).
Somehow Trump’s presence hasn’t gotten non-Walker opponents out of the race yet. Fiorina, Rubio, Carson, who don’t have huge money.
That’s because Walker was really more a conservative that the ones you mention. They’re still being supported to diminish Trump not because anyone really supports them.
Walker was out there to fail virtually on his own, regrettably.