Erie, Pennsylvania. Republicans on Sunday sought to distance themselves from Donald Trump's latest insults of Democratic nominee Kamala Harris during a rambling weekend rally in Wisconsin in which he called her “mentally disabled.”

Trump escalated his personal attacks on the vice president during a self-described “dark speech” on immigration following Harris’ trip to the US-Mexico border.

“Joe Biden became mentally impaired,” Trump said. “Kamala was born that way. She was born that way. And if you think about it, only a mentally disabled person could have allowed this to happen to our country. Anybody would know this.”

Trump has already falsely claimed Harris “turned Black” and regularly insults her as “stupid,” “weak,” “dumb as a rock” and “lazy.” With just over a month left before the presidential election, his allies pushed him publicly and privately to talk instead about the economy, immigration and other issues.

“I just think the better course to take is to prosecute the case that her policies are destroying the country,” said Senator Lindsey Graham of South Carolina on CNN's “State of the Union" when asked about Trump's comments. “They’re crazy liberal.”

When asked whether he approved of the remarks, Representative Tom Emmer of Minnesota sidestepped during an interview on ABC’s “This Week.”

“I think Kamala Harris is the wrong choice for America,” said Emmer, who is helping Trump’s running mate JD Vance prepare for Tuesday’s vice-presidential debate. “I think Kamala Harris is actually as bad or worse as the administration that we’ve witnessed for the last four years.”

When pressed, Emmer said: “I think we should stick to the issues. Donald Trump fixed it once. They broke it. He’s going to fix it again. Those are the issues.”

Former Maryland Governor Larry Hogan, running for the Senate as a moderate Republican, brought up Trump's false claims that Harris, the daughter of Jamaican and Indian immigrants, had previously downplayed her Black heritage. Harris attended Howard University, a historically Black college, and has identified as both Black and South Asian consistently throughout her political career.

“I’ve already called him out when he had the one interview where he was questioning her racial identity, and now he’s questioning her mental competence," Hogan told CBS' “Face the Nation.” “And I think that’s insulting not only to the vice president but to people who actually do have mental disabilities.”

If elected, Harris would be the first woman, Black woman and person of South Asian descent to be president. She has not commented on Trump’s recent attacks but has said when asked about other comments that it was the “same old show, the same tired playbook we’ve heard for years with no plan on how he would address the needs of the American people.”

Trump was holding a rally Sunday in Erie, Pennsylvania, and some of the supporters showing up for his speech said he often makes offensive remarks. Still, they support his proposals to restrict immigration and said he would have a better handle on the economy.

“He says what’s on his mind, and again, sometimes how he says it isn’t appropriate,” said Jeffrey Balogh, 56, who attended the rally with two friends. “But he did the job. He did very well at it.”

Tamara Molnar said she thinks Trump is very strong on immigration. As for his insults, Molnar said: “I think everybody has to have some decorum when speaking about other candidates, and I don’t think either side is necessarily innocent on that. There’s a lot of slinging both ways.”

Trump said last month that he was “entitled” to personal attacks against Harris.

“As far as the personal attacks, I’m very angry at her because of what she’s done to the country," he told a news conference then. “I’m very angry at her that she would weaponize the justice system against me and other people, very angry at her. I think I’m entitled to personal attacks.”