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Heidi Cruz referred to Sen. Ted Cruz as an immigrant while laying out the reasons people should vote for her husband in Indiana's primary, raising some eyebrows.

"Ted is an immigrant," Mrs. Cruz said. "He is Hispanic. We can unify this Party."

A Cruz aide later said that Mrs. Cruz misspoke and meant to refer to him as the "son of an immigrant," according to the Washington Examiner.

"That is a story she shares repeatedly on the campaign trail. It is an integral part of his background and personal story, one which resonates with the millions of Americans who share a similar background, and that gives hope to those struggling to climb the economic ladder," spokesperson Catherine Fazier said.

Cruz's Canadian origins have been raised repeatedly as an issue by GOP frontrunner Donald Trump. (Legal analysts have said that Cruz qualifies as a natural-born American citizen and therefore would be eligible to run for president, under the law.)

Reacting on Fox and Friends Weekend this morning, Trump affirmed what Mrs. Cruz said literally.

"He's an immigrant. I assume she's saying he's an immigrant from Canada because he lived in Canada for the first four years of his life."

He said that in the unlikely event Cruz is nominated, Democrats would bring a lawsuit on day one challenging his eligibility.

Watch the clip above.

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