Trump can start making the anti-contested convention argument.
A contested convention will split the party and only benefit Hillary.
Trump is the only candidate who can avoid a contested convention, unite the party before the convention, and allow the party to focus on beating Hillary.
The problem is that Hitlery is the DC Uni-Party candidate. Therefore, the mission of the GOPe is to field a sacrificial candidate to fool the rubes into thinking their vote matters.
Donald Trump is the arch-enemy of the DC Uni-Party. If he wins, their power base starts to erode.