President Donald Trump said Thursday that Vivek Ramaswamy, the Republican nominee for Ohio governor, should keep running a controversial ad featuring the estranged mother of Democratic opponent Amy Acton.

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.

President Donald Trump on Monday tried to boost Sen. Jon Husted's reelection campaign by attacking two groups of Black immigrants during a rally in Ohio.

The mailers are sponsored by Enough Promises Ohio PAC and began arriving in voters' mailboxes in recent days.