How do you know? If nobody gets a majority of delegates, then anything goes.
Every Election Cycle, people get all hyped up over the possibility of a Brokered Convention. The last time that happened was in 1952 when the Dems nominated Gov. Adlai Stevenson of Illinois; 60 years ago. It won’t happen, my friend. Someone will get the “Big Mo” and get the Delegates. But, hey, I’d love to see it.