Heidi Cruz referred to husband, Texas Sen. Ted CruzRafael (Ted) Edward CruzTrump looms over Senate's anti-Asian hate crimes battle Republicans who backed Trump impeachment see fundraising boost US has seen 45 mass shootings in the past month MORE, as an immigrant during an Indiana campaign stop on Saturday, prompting the campaign to say she misspoke.

“Ted is an immigrant,” Heidi Cruz said. “He is Hispanic. We can unify this party.”

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A Cruz aide later told the Washington Examiner that Heidi meant to call her husband the son of an immigrant. 

Republican presidential front-runner Donald TrumpDonald TrumpGraham: 'I could not disagree more' with Trump support of Afghanistan troop withdrawal GOP believes Democrats handing them winning 2022 campaign Former GOP operative installed as NSA top lawyer resigns MORE was asked about the statement in an interview Sunday with Fox News's Geraldo Rivera, who is Hispanic.

“It’s just so bad. Let me tell you. I assume she’s saying he’s an immigrant from Canada. Because you know he lived in Canada for the first four years of his life. Not an immigrant like I think she’s referring to,” Trump said. “She’s, I assume, referring to one of your areas of the world. Right, Geraldo?"

Cruz is from Canada, but his father, Rafael Cruz, was born in Cuba, coming to the U.S. in 1957 to attend the University of Texas at Austin.

Trump brought up the misstep again at a campaign rally on Sunday afternoon.