Republican presidential candidate Donald Trump said Catholic Americans who plan to vote for Kamala Harris should “have their heads examined,” days after making similar remarks about Jews.

In an article on Truth Social on Monday, Trump said he would attend the Al Smith charity fundraiser this year. Harris' team said she would not attend to focus on the campaign trail, a break with presidential tradition.

Trump wrote: “It is sad but not surprising that Kamala has decided not to attend. I don't know what she has against our Catholic friends, but it must be a lot because she certainly hasn't been very nice to them. In fact, Catholics are literally persecuted by this administration.”

“Every Catholic who votes for Comrade Kamala Harris should have a head exam…” he added.

Trump made similar remarks about Jews on Thursday at an event on “Fighting Anti-Semitism in America” in Washington, DC

“Every Jew who votes for them should have a head examination. I find it hard to believe, I think it's partly a habit,” he said.

He added that in the event of an electoral defeat, “the Jewish people would have a great deal to do with that defeat.”

Trump has often attacked Christians and Jews who may not support him, portraying himself as their staunch ally in opposition to the Democratic Party.

He called the party “anti-Catholic” and repeatedly claimed that Catholics were being “persecuted” by the current administration of Joe Biden, even though Biden himself is a Catholic.

A Pew Research Center poll released earlier this month shows that 52 percent of Catholic voters support Trump, while 47 percent say they support Harris.

Trump sparked controversy earlier this year when he said, “Christians, vote this time. You don't have to do it anymore. Four more years, you know what? It will be sorted out. It will all be fine. You don't have to vote anymore, my dear Christians.”

Some people considered his statements authoritarian and undemocratic and said that if he became president, there would be no more elections.

His defenders said that what he meant was that Christians would not have to vote for him again because he would then have completed his term in office.

Pope Francis recently made a rare political statement when he criticized abortion and immigration policies and urged voters to choose whoever they considered “the lesser of two evils,” without mentioning Trump or Harris by name.

Newsweek contacted the Trump campaign team via email outside of regular working hours.