Sen. Al FrankenAlan (Al) Stuart FrankenFranken rules out challenge against Gillibrand for Senate seat Franken targets senators from both parties in new comedy tour Al Franken on another Senate run: 'I'm keeping my options open' MORE (D-Minn.) said early Sunday that he is "nervous" about the presidential race two days before Election Day.

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"A lot of Democrats out there are nervous. Are you among them?" Jake Tapper asked the senator on CNN's "State of the Union."

"Oh, sure. I'm always nervous. I was nervous in '12. I was nervous in '08 — for good reason," Franken replied.

He added that when he goes to canvassing centers, he tells volunteers: "Many of you have jobs. Many of you have families. Ignore them. Get on the doors."

Republican presidential nominee Donald TrumpDonald TrumpSenate rejects attempt to block Biden's Saudi arms sale Crenshaw slams House Freedom Caucus members as 'grifters,' 'performance artists' Senate confirms Biden's nominee to lead Customs and Border Protection MORE has ticked up in the polls as the presidential race winds down to the final days. Polls have tightened in multiple battleground states, including Pennsylvania and Michigan.

Both candidates have made last-minute plays to win over voters in swing states. Democratic nominee Hillary ClintonHillary Diane Rodham ClintonBen Affleck: Republicans 'want to dodge the consequences for their actions' through gerrymandering Republican Ohio Senate candidate slams JD Vance over previous Trump comments Budowsky: Why GOP donors flock to Manchin and Sinema MORE will campaign in Michigan on Monday, while Trump will also campaign in Michigan and Pennsylvania the day before Election Day.