The last time the GOP invoked the rules discussed in the video above was 1976?
Gerald Ford was the incumbent that year, but Ronald Reagan had made a good showing in several primaries and at the convention:
|First ballot vote for the presidential nomination by state delegations|
Read more about the 1976 Republican National Convention HERE.
Additional reading...Wild card for Trump: Who gets to be a convention delegate? Brief excerpt:
...State delegations who vote for one candidate on the first ballot could actually turn out to be sleeper cells for another as the voting proceeds.It's possible that neither Donald Trump nor Ted Cruz will reach the magic number (1,237) on the first ballot. No wonder Party leaders keep asserting, "Donald Trump will never be the nominee"!
Nor are they bound at any point to support the candidate to whom they are pledged on fights over rules, credentials, the platform or the vice presidential nominee. Those kinds of battles can determine whether the convention is an orderly coronation or a street fight, possibly even putting new names in contention....
...[K]eep an eye on the emerging composition of the Republican National Convention Rules Committee. That committee of more than 100 will carry wide authority over the nominating rules at the convention, including rules over who can be nominated at all on the floor of the convention.