If President Barack Obama doesn't produce a strong performance at Tuesday night's debate, he can kiss the election goodbye, Donald Trump told CNBC's "Squawk Box."
The real estate mogul expects a more energetic Obama in this debate.
"I think the president will come out a lot stronger and with more enthusiasm, " he said Tuesday morning.
"There's tremendous pressure on President Obama to perform, and if he doesn't perform I actually think it's going to be over because he was so bad in the first debate that people didn't believe it, " said Trump, a Romney supporter.
(Read More: The Pressure's on Obama in Debate Rematch With Romney.)