Harris To Name Running Mate, Launch Blitz Of US Swing States

This combination of file pictures created on July 31, 2024 shows (L-R, top to bottom) US Vice President and Democratic Presidential candidate Kamala Harris in Milwaukee, Wisconsin, on July 23, 2024; and the five contenders being considered as her running mate Pennsylvania Governor Josh Shapiro in Scranton, Pennsylvania, on April 16, 2024; Kentucky Governor Andy Beshear in Washington, DC, on April 26, 2023; Minnesota Governor Tim Walz in Washington, DC, on July 3, 2024; US Senator Mark Kelly of Arizona in Washington, DC, on May 4, 2024; US Transportation Secretary Pete Buttigieg in Washington, DC, on April 17, 2024. (Credit: AFP)

Kamala Harris was set to announce her running mate Tuesday before the pair head out on a five-day swing through America's hottest battleground states, just three months out from the presidential election.

The US vice president's campaign has come out of the blocks at a lightning pace since she replaced Joe Biden at the top of the Democratic ticket, smashing fundraising records and wiping out the leads built up by Republican rival Donald Trump.