Harris to announce VP pick on Tuesday ahead of Philadelphia rally - report

Kamala Harris is reportedly set to announce her choice of a running mate with a video released on Tuesday, before they appear together at an evening rally in Philadelphia to kick off a five-day tour of the swing states that are crucial to winning the presidential election.

Politico, which first reported the Harris campaign's plan, noted that Joe Biden also prepared a video to reveal Harris as his running mate in 2020.

The culmination of what has been a lightning-fast vetting process - it is little more than two weeks since Biden, the 81-year-old president, made the historic decision to stand aside and Harris became the de facto nominee - has seen a round of interviews both in person and online.

On Monday, Reuters reported that the search had narrowed to two governors: Josh Shapiro of Pennsylvania and Tim Walz of Minnesota. Harris, 59, interviewed both men, as well as the Arizona senator Mark Kelly, over the weekend at the Naval Observatory, the Washington DC residence of the vice-president.

Three other men were reported to be on her shortlist: the Illinois governor, JB Pritzker; the Kentucky governor, Andy Beshear; and Pete Buttigieg, the former mayor of South Bend, Indiana, who is now the US secretary of transportation.

With polling showing her gaining on Donald Trump - CBS gave the Democrat a one-point edge nationally and put the candidates level in battleground states - and a rocky rollout for Trump's own vice-presidential pick, JD Vance, speculation has been rife as to whom Harris will select, with reporters seizing on even the smallest clues.

Her choice of Philadelphia, in Pennsylvania, for her first rally with her new running mate has fueled speculation that it will be Shapiro, while Kelly on Sunday tweeted then deleted the statement: "My mission is now serving Arizonans." Reuters subsequently cited anonymous sources that Kelly was indeed out of the running.