On Monday, CNN's political reporter Chris Cillizza explained that if President Trump's 2020 presidential race is close that he might have a temper tantrum.

So far, President Trump has said that there was voter fraud in close midterm races without evidence.

"I think it shows that this is not someone who if he does come up short in 2020 -- and obviously we're a long way from that, but if he does come up short in 2020, this is not someone who is going to go gently into that good night,"  Cillizza said.

"You're going to have to evict him from 1600 Pennsylvania Avenue?" Lemon joked.

"His life is largely him telling himself the stories of him winning. I think 2020 could be close. But if there's a close election, let's say it comes down to Florida where he loses by a point or two," he said.

"Given what we know about him personally, about his approach in business and politics, and about how he has handled just claiming there's fraud and they should stop the automatic recount by state law, why would we conclude that with his own personal political interests at stake, that he would act any different," he said.

Watch the video below via CNN.