() With just 34 days left until the 2024 presidential election, Republican vice presidential nominee Sen. JD Vance of Ohio and Democratic vice presidential nominee Gov. Tim Walz of Minnesota will spar in their first and only debate Tuesday night.

The pair have traded barbs in the past, with former President Donald Trump’s running mate questioning Walz’s military record and liberal leanings. Meanwhile, Walz who Vice President Kamala Harris selected just weeks after taking up the mantle from President Joe Biden has jabbed Vance for his statements about childless cat ladies and school shootings.

The 90-minute debate will feature unmuted microphones and no fact-checking by CBS moderators, Norah O’Donnell and Margaret Brennan, according to the network. There will be two four-minute breaks. Vance will have the last word as a result of a Thursday coin toss, CBS said.