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. ABC News Digital will live blog throughout the day and evening, 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.

The matchup could have an impact on critical undecided voters.{ai:summary}<p>The vice-presidential debate between Tim Walz and JD Vance is set to take place at 9 p.m. ET, potentially influencing undecided voters in the closely contested presidential election. Pre-debate coverage begins at 8 p.m. on ABC. </p><p>Live updates will be available on ABC News Digital during the event. #politics</p>

Walz-Vance debate updates: VP candidates set for showdown in close presidential race

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