The matchup could have an impact on critical undecided voters.
The vice-presidential debate between Tim Walz and JD Vance could prove to be a major factor in the presidential election -- given how close the race is and its potential impact with undecided voters.
The 90-minute CBS News showdown starts at 9 p.m. ET in New York City. Pre-debate coverage will air at 8 p.m. on the ABC network and stream on ABC News Live -- followed by the debate itself and post-debate analysis.
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.
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Minnesota first lady Gwen Walz sent her husband well-wishes in a post on X prior to the debate.
"Tim has always held true to the values he grew up with: loving your country, helping your neighbor, and fighting for what's right." she wrote.
"We're so proud of you, Tim."
Vance, at 40, is the first millennial on a major party ticket and has only been a politician for two years. He was elected to the Senate in 2022.
Walz, who is 60, has been in government for decades. He successfully ran for Congress in 2005 and served for six terms. He became the governor of Minnesota in 2018 and was reelected in 2022.
Still, some commonalities exist: both are military veterans and they each bring Midwest bona fides to their respective tickets.
Vance has arrived at CBS Studios for the debate.
Walz's motorcade has arrived at CBS Studios in New York City for the debate. Vance is en route.
