“Walker is already starting to slowly fade away ...” as is Perry, Christy, Fiorina, and others. This is Trump’s function - pound, lie and so on about the other candidates until he get’s the nomination, then lose in the general. The Hillary fix may be in.
Trump is beating Hillary, why would someone with an ego like Trump just hand that over the presidency to her especially since Hillary could be facing prison time? Doesn't make sense.