Ohio Sen. JD Vance and Minnesota Gov. Tim Walz have each been thrust into the spotlight as the running mate picks of former President Donald Trump and Vice President Kamala Harris, and recent polls show registered voters hold Walz in higher regard than Vance heading into their vice presidential debate.

Donald Trump and Kamala Harris' running mates are set to face off in their first, and likely only, debate before Election Day.

Vice presidential candidates JD Vance and Tim Walz will hit the debate stage Tuesday night to introduce themselves, and support their running mates ahead of November’s election. Here's what you need to know.