The Democratic National Convention is set to begin Aug. 19 in Chicago. Here's what to know about the DNC and how to follow along with all of the action.

Vice President Kamala Harris and her running mate, Gov. Tim Walz, stumped in Pennsylvania ahead of the DNC. ABC News' White House correspondent Mary Alice Parks reports.

Gwen Walz describes herself as one of her husband's closest advisers during his time as a congressman and governor.

She is set to appear with her husband, VP Harris and her husband on Sunday.

Harris and Walz launch their 1st bus tour through western Pennsylvania.

House Oversight Committee chair James Comer is launching an investigation into what he says is Minnesota Gov. Tim Walz's "extensive engagement with China."

Both claim to be champions of gun rights for law-abiding citizens, but vice presidential candidates JD Vance and Tim Walz have differ on how to curb gun violence.

Vance is one of the least popular vice-presidential picks this century.

More Americans see Tim Walz favorably than unfavorably, contrary to JD Vance, and more approve of Walz’s selection, according to new ABC News/Washington Post/Ipsos poll.

Vice presidential candidates JD Vance and Tim Walz have vastly different views on how to curb America's gun violence epidemic.

Tim Walz previously characterized his military service in a way that drew criticism, according to an ABC News review of the VP candidate's past interviews and speeches.

Minnesota Gov. Tim Walz defended his military record while speaking to union members in Los Angeles after attacks from former President Donald Trump’s campaign.

The Minnesota governor countered the Trump campaign’s line of attack as he met union members in Los Angeles following last weekend’s battleground blitz with Vice President Kamala Harris.

This week, the website domain “HarrisWalz.com” sold for $15,000. The domain’s previous owner bought it back in 2020 for around $9.

A New York Times/Siena poll shows Vice President Kamala Harris has a four-point edge on former President Donald Trump in Wisconsin, Pennsylvania and Michigan, within the margin of error.

While VP candidate Tim Walz faces GOP criticism for his response to the George Floyd riots, the brother of Floyd himself says he's supporting the Minnesota governor.

Donald Trump's running mate, Sen. JD Vance, is alleging Kamala Harris' running mate, Tim Walz, is guilty of "stolen valor." Here's what to know about his record.

The vice presidential nominees, Democrat Tim Walz and Republican JD Vance, sharply disagree on various issues, and the differences in their finances are just as stark.

Walz does not own a single stock, while Vance invests in dozens of companies.

Before Kamala Harris decided Minnesota Gov. Tim Walz would be her running mate, she had a talented field of finalists.

There are questions about how Walz described his military service, including claims he carried a gun "in war," when he never saw active combat.

ABC News’ Selina Wang has the latest as the Harris and Trump campaigns hold dueling events in battleground states in the Midwest.

Minnesota Gov. Tim Walz has backed labor protections and raised taxes on some corporations.

Minnesota Gov. Tim Walz has enacted economic policies in the state on key issues like job creation and taxes.

On Wednesday, the planes carrying Vice President Kamala Harris and Sen. JD Vance to separate Wisconsin campaign events were on the same tarmac.

Allies of Donald Trump are slamming VP candidate Tim Walz for his handling of riots in the wake of George Floyd’s murder -- but Trump expressed his support at the time.

Plus, JD Vance and Donald Trump slam Gov. Walz's response to the George Floyd protests in Minneapolis in 2020 and how he represented his military service.

Walz was a U.S. House Representative from 2007 to 2019 before becoming the governor of Minnesota.

ABC News Politics Reporter Brittany Shepherd discusses the Harris-Walz campaign and its challenges.

Minnesota Gov. Tim Walz has now joined the campaign trail as presidential nominee Kamala Harris' VP pick. Here's where he stands on health care issues.

Democratic vice presidential nominee Gov. Tim Walz speaks to a crowd of supporters in Eau Claire, Wisconsin.

Mankato West High School principal Sherri Blasing gives insight on the Minnesota governor from before transitioning to politics.

Born and raised in rural Nebraska, Minnesota Gov. Tim Walz’s journey to the Democratic ticket has been anything but conventional.

Gov. Maura Healey on why she thinks Tim Walz was the strongest VP candidate for the Democratic ticket and how he will appeal to voters in middle America.

As Tim Walz joins Kamala Harris on the Democratic presidential ticket, critics are blasting the governor for how he handled a massive COVID-19 fraud scheme in his state.

Minnesota Gov. Tim Walz was tapped as Vice President Kamala Harris's running mate on Tuesday -- a choice that could potentially usher in a historic first.

As Tim Walz joins Kamala Harris on the Democratic presidential ticket, critics are blasting the governor for how he handled a massive COVID-19 fraud scheme in his state.

Many are surprised that Vice President Kamala Harris did not pick Pennsylvania governor, Josh Shapiro, who leads a battleground state important for an Electoral College victory in November.

The former president and other Republicans are criticizing the Democratic ticket’s strategy as they vie for the White House.

Vice President Kamala Harris has officially named Minnesota Gov. Tim Walz as her vice presidential running mate.

After weeks of speculation, Vice President Harris debuted her running mate, Minnesota Gov. Tim Walz, at a rally in Philadelphia.

ABC News’ Phil Lipof speaks with Minnesota Rep. Leigh Finke about Gov. Tim Walz's nomination as Kamala Harris' running mate and discusses his track record as head of the Midwestern state.

ABC News' Phil Lipof breaks down with 538's Galen Druke how Kamala Harris' VP pick affects the Democratic strategy in swing states.

ABC’s Phil Lipof talks with Axios reporter Torey Van Oot about who Gov. Tim Walz is and what he’s done for the state of Minnesota.

Tim Walz is a progressive military veteran and gunowner from the Midwest. That checks a lot of boxes for Kamala Harris.

Vice President Kamala Harris and her newly announced presidential running mate made their first campaign appearance in Philadelphia before a large crowd.

Climate and environmental advocacy groups say Minnesota Gov. Tim Walz has a record of pushing for policies to mitigate climate change in his state.

Minnesota Gov.Tim Walz, selected as Kamala Harris's running mate, joined her on stage in Philadelphia before a crowd of thousands. He called it "the honor of a lifetime" and said he's "all in."

Newly minted Democratic vice presidential candidate Gov. Tim Walz makes his first speech at Philadelphia campaign rally.

Vice President Kamala Harris rolled out the welcome mat for her running mate Minnesota Gov. Tim Walz. The Philadelphia rally is the first public outing for the Democratic presidential ticket.