Nothing, his supporters are so stupid they have no idea he's a liberal so he could say anything he wants and still keep his support. Only hope is for everyone but Rubio to drop out and hope that everyone goes to him.
This post is a perfect encapsulation of why Trump is winning!
1. Derision and condescension for his supporters.
2. Junk conventional wisdom. If a candidate drops out, Rubio HAS to get their votes! Right guys?
Yes, people who support Trump should be treated like the morons they are. The angry old people saying "no government healthcare" now go "yeah, Trump said single-payer healthcare, we need this, make America great again!".
And I said the only way it COULD happen is IF they go to Rubio. Didn't say they would, just that it would be the only way. Oh well, it's going to be annoying having Hillary for at least 4 years but it'll be hard to understand how SHOCKED people will be when it happens.
Trump actually does have a legitimate shot at winning the general. Remember, he was never supposed to be a top contender for the nomination or even come close to winning something, and look where he is now.