Threatens to boycott CNBC debate unless demands are met

Trump and Ben Carson sent CNBC a letter insisting the Oct. 28 debate be capped at two hours with opening and closing statements, warning they would walk if the network didn't surrender to their format demands—an intimidation tactic that forced organizers to bend rather than risk losing him.

"We will not participate in your debate if it is longer than two hours." — Joint letter from Trump and Ben Carson to CNBC on Oct. 15, 2015 threatening to boycott the Boulder debate over its length and format