The matchup could have an impact on critical undecided voters.
Vice presidential candidates Gov. Tim Walz and Sen. JD Vance squared off for the first and only time this election season.
Unlike the last two presidential debates, the candidates appeared to be more cordial. However, both running mates criticized the presidential candidates on a host of issues including gun violence, reproductive rights, immigration and climate change.
Walz appeared to have nerves in the opening of debate, but went on the attack as the night went on. Vance took aim at Harris and her policies and pushed Trump's policies.
FACT CHECKS OF THE DEBATE | Vice presidential debate fact check: Claims made by Gov. Tim Walz and Sen. JD Vance
CBS News, the network hosting the debate, said that the candidates' microphones will not be muted, but clarified in a press release that it "reserves the right to turn off candidate microphones."
This is a shift from the CNN presidential debate in June and the ABC News presidential debate held earlier this month, where microphones were muted unless it was the candidate's turn to speak.
Read more here.
The 90-minute debate will air on CBS and be simulcast on the ABC network and stream on ABC News Live.
ABC pre-debate coverage begins at 8 p.m. ET; post-debate ABC News coverage will go on until 11 p.m. ET. ABC News Live, ABC News' 24/7 streaming news channel, will provide full coverage beginning at 7 p.m. ET and run through 12 a.m. ET.
