I'm still not convinced that they will let him run.
Anything they do at this point will only hurt the party worse. All those angry old white guys have had their say and gotten the candidate they want. The third party plan hasn't gotten any traction at all and hasn't even been able to find a viable candidate or even one who would risk his career tilting at that windmill. If establishment Republicans yank the nomination out from under Trump it will disenfranchise a majority of their voters who seem not to like the Republican Party any more than we do.
Bernie might do better in the polls and might even win by a larger margin than Madame Clinton but I don't think Trump stands much of a chance against either of them. That, I think, is going to be the wall that Bernie runs into at the convention.
