Check out Rule 37...I think they plan on stripping the delegates from anyone that walks in with the magic number. The way to do that is to have the delegates vote by “secret ballot” that way the delegates are not “Bound” on the first round. Its all a done deal. Say hello President Hillary “Vagina” Clinton
They won’t get away with it if they try - unless they care less that the Republican Party would cease to exist if they tried it.
If Trump has the majority of delegates (1237) heading into the convention and the clear majority or even plurality of actual votes, they will not attempt it.
One way Trump could ensure they don’t is to get his name on the ballot on all 50 states so he could then run independently like Perot did in 1992 as insurance should the GOPe attempt and succeed in what would be a political coup - taking the sure nomination away from Trump and say giving it to Romney.
However, like I pointed out, the GOPe mega-donors with the tacit approval of the GOPe, can finance a third party run by Romney or get say Ted Cruz to run for President on the Constitution Party ticket while still keeping his GOP Senate seat, similar to Ron Paul keeping this GOP house seat while running for President as the Libertarian Party Candidate in 1988.
If either of the above plays out, this would likely take votes away from Trump and hand the election to Hitlery!!!
The real decisions will come in Cleveland - just a week before the convention starts on July 18. That is when the Convention Rules Committee, made up of two delegates from each state, will decide upon the rules governing the gathering. That part is complex too. The RNC Rules Committee makes recommendations on the convention rules to the national party, which then makes recommendations to the Convention Rules Committee, which then recommends a slate of rules to the delegates to approve on the first day of the convention.
Threat of Brokered Convention Fuels GOP Rules Panel | RealClearPolitics | January 15, 2016