What to watch on the campaign trail today Vice President Kamala Harris is continuing her swing state blitz, making a stop with her running mate, Minnesota Gov. Tim Walz, in Phoenix.Former President Donald Trump's itinerary for the day begins alongside North Dakota Gov. Doug Burgum, once viewed as a potential vice presidential pick. Burgum will host a dinner fundraiser for Trump before Trump rallies in Bozeman, Montana.Trump and Harris independently confirmed they had agreed to a Sept. 10 debate. Trump said he'd agreed to a total of three debates, and Harris signaled openness to participating in additional debates.