President Donald Trump's political groups have spent more than one-quarter of a billion dollars to bolster Republicans in the final stretch of this year's midterm elections, an unprecedented amount for a sitting president that underscores the stakes on Nov. 3.

President Donald Trump will visit South Carolina on Wednesday to boost Graham, whose stumbles in her first campaign since replacing her late brother have Democratic voters hopeful — but not necessarily optimistic — that their candidate can break Republicans' grip on the state.

Vermont Republican Gov. Phil Scott and Democratic challenger Amanda Janoo face off in a debate produced by Vermont Public.

Questions about the video will likely shadow Republican Vivek Ramaswamy, a biotech billionaire who previously ran for president but has never before held public office, in the final two weeks of the contest.

In Cincinnati, the vice president said it was "not really my concern" whether the controversial 60-second spot was appropriate, and said he was focused on supporting Republican candidates in their midterm races.

At a rally in Kansas on Monday, President Trump looked to boost Republican Sen. Roger Marshall in his reelection bid. Marshall faces a surprisingly close race with his Democratic challenger, Pastor Adam Hamilton. William Brangham discusses the Senate race with Jared Cerullo of PBS Kansas, the host of the weekly current affairs show, "Kansas Week."