It was role reversal Sunday night on Fox News Channel, as Sean Hannity was Mark Levin's guest for the full hour on "Life, Liberty & Levin."

Hannity emphasized the importance of the midterm elections, warning that Democrats want to undo the 2016 election and impeach Trump. 

"This is a tipping point for the country," he said, agreeing with Levin's past assertion that the country is in a "post-constitutional" period. 

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"If they're successful in their effort to undermine Donald Trump, we've lost the country, and we'll never get it back," said Hannity.

Later in the show, Hannity discussed how he got his big break in the radio industry. 

Levin asked Hannity how he has the energy to host his radio show during the day and his Fox News show at night Monday through Friday. 

"I don't know. I can flip the question: if I didn't do it every day, I'd be riding around in a car doing my own talk show, probably out loud, talking to myself," he joked.

Watch the discussion above and don't miss "Life, Liberty & Levin" Sundays at 10:00pm ET on Fox News.

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