Trump and Clinton went head-to-head Monday night in a heated session at Hofstra University. The Republican candidate appeared to be shouting at some points and stumbled over his words at others.
When asked by reporters after the event what he thought of moderator Lester Holt's performance, Trump said: "I felt he was fine."
But he then lamented having a "defective mic."
"My mic was defective within the room," Trump told reporters.
He added: "I wonder ... Was that on purpose? Was that on purpose?"