The Cruz campaign quickly clarified that Heidi Cruz meant to say that her husband's father is an immigrant, a point Ted Cruz often makes when asked how he can win Latino votes. But Trump preferred the uncorrected version.
"She was maybe trying to put a Latin turn on it," Trump said. "He was born in Canada, folks!"
The last time Trump pulled Heidi Cruz into his campaign monologue, he came to regret it.
He began his campaign for Wisconsin's primary by tweeting a vague threat to "spill the beans" on Heidi Cruz, then retweeting a meme that compared her looks negatively to those of Trump's wife, Melania.
It backfired badly, and in Fort Wayne, Trump tried to be both arch and complimentary about his misuse of her words.
"We don't want to get her in trouble, so let's not use that, right?" he joked.