"All of us should use every breath we have to make sure the lies stop on January 20, 2021," Comey told an audience at the 92nd Street Y on New York City's Upper East Side. He all but begged Democrats to set aside their ideological differences and nominate the person best suited to defeating Trump in an election.

"I understand the Democrats have important debates now over who their candidate should be," Comey told MSNBC's Nicolle Wallace, "but they have to win. They have to win."

Comey calls on Americans to 'use every breath we have' to oust Trump in 2020