DETROIT — Kamala Harris and Donald Trump on Tuesday both pushed to energize key constituencies that their allies worry might be slipping away, with the vice president looking to reach Black men and the former president focusing on women.

Harris appeared at a town hall-style event in Detroit hosted by the morning radio program “The Breakfast Club,” featuring Charlamagne Tha God, who is especially popular with Black males. Trump, meanwhile, taped a Fox News Channel town hall featuring an all-female audience and moderated by host Harris Faulkner.

Harris stopped by a Detroit art gallery Tuesday accompanied by three Hollywood stars — Don Cheadle, Delroy Lindo and Detroit native Cornelius Smith Jr. — at the Norwest Art Gallery for a conversation with Black men about entrepreneurship.

Harris’ running mate, Minnesota Gov. Tim Walz, unveiled his ticket’s plan to improve the lives of rural Americans. It’s yet another sign that in a razor-tight race, each side is trying to cut into the other’s margins of support with different voting blocs while shoring up traditional areas of strength.

The plan includes a focus on improving rural health care, such as plans to recruit 10,000 new health care professionals in rural and tribal areas through scholarships, loan forgiveness and new grant programs, as well as economic and agricultural policy priorities.

The vice president’s “Breakfast Club” appearance came one day after she announced a series of new proposals dubbed the “Opportunity Agenda for Black Men.” The ideas are meant to offer the demographic more economic advantages, including providing forgivable business loans of up to $20,000 for entrepreneurs and creating more apprenticeships.

The vice president’s campaign says it doesn’t believe Black men will flip in large numbers to supporting Trump, especially after strongly backing Democrat Joe Biden, with Harris as his running mate, in 2020. They are more concerned about a measurable percentage of Black males opting not to vote at all.

Still, the vice president’s campaign expects to see strong support on Election Day from white, college-educated voters in Michigan at rates that might exceed Biden’s in 2020.

She’s also seized on insults Trump made about Detroit last week while campaigning there. He said if Harris wins, “Our whole country will end up being like Detroit.” He added, “You’re going to have a mess on your hands.”

Trump has maligned cities hosting him before, but Harris said it was proof he was “unfit to be president.”

On Monday evening, Harris zeroed in on Trump’s comments Sunday suggesting the U.S. military could be used to deal with “the enemy from within.”

“He considers anyone who doesn’t support him or who will not bend to his will an enemy of our country,” Harris said after playing a clip of the comment on the jumbo screen at her rally at an Erie, Pennsylvania, arena.

While the former president figures to do well with rural voters, the Harris team hopes to at least keep things closer. And while Harris’ support among women is strong, Trump aims to keep her from running up the score.

Trump has seen his support among women, especially in the suburbs of many key swing states, soften since his term in the White House. A September AP-NORC poll found more than half of registered voters who are women have a somewhat or very favorable view of Harris, while only about one-third have a favorable view of Trump.

To reverse the trend, Trump has sought to cast himself as being able to personally shield women from various threats, as when he suggested at a rally in Pennsylvania last month that women in America, “will no longer be abandoned, lonely or scared. You will no longer be in danger.”

He’s also suggested that, should he win, women will no longer have a reason to think about abortion, after three Supreme Court judges that he appointed helped in 2022 to overturn the landmark Roe v. Wade decision.

In Chicago on Tuesday before members of the Economic Club, Trump defended his support for high tariffs as an economic cure-all.

“To me, the most beautiful word in the dictionary is ‘tariff,’ ” Trump told Bloomberg Editor-in-Chief John Micklethwait, who interviewed him at the event. Micklethwait repeatedly pressed Trump on warnings from economists that the costs of high tariffs will be passed along to American consumers, raising prices.

Later, Trump once again claimed that there was a peaceful transition of power after the 2020 election, despite the fact that his supporters violently stormed the Capitol building on Jan. 6, 2021.

The friendly audience responded with boos when Micklethwait tried to dispute him.

Trump also repeated several other falsehoods in his response, such as that “not one of those people had a gun” and that “Nobody was killed,” except Ashli Babbitt, a Trump supporter who was shot and killed by police as she tried to break into the House chamber.

In fact, five people died in the riot and its immediate aftermath, including Brian Sicknick, a police officer.

Also, a slew of rioters were carrying weapons, including firearms, knives, brass knuckle gloves, a pitchfork, a hatchet, a sledgehammer and a bow.