And Trump is a sure thing?
Since 1880, there have been eight contested GOP conventions and in five of those, the eventual winner did not go into the convention with a plurality of delegates.
In the 1976 Republican convention, it was the unbound delegates moving toward President Gerald Ford instead of Ronald Reagan that handed Ford the nomination that year. Ford held a slight lead going into the convention, but was shy of an outright majority.
Don’t the remaining states’ voters have a right to their say? And after they do, what if Trump still doesn’t have enough delegates?