The lead strategist for Mitt Romney's 2012 presidential campaign noted Donald Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE's wife and one of his ex-wives is an immigrant in panning the presumptive Republican nominee's positions on Monday.

Four of @realDonaldTrump children have immigrant mothers. — stuart stevens (@stuartpstevens) June 13, 2016

Romney strategist Stuart Stevens, a frequent critic of Trump, ripped the Republican's plan to ban Muslims from entering the United States.

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Trump delivered a foreign policy speech Monday, in the wake of the mass shooting in Orlando that claimed 49 victims, doubling down on his belief that further immigration controls will provide protection from terrorism. The gunman in the attack was a New York-born son of an Afghan immigrant.

Stevens noted that the Orlando shooter was born in New York.

Trump and Orlando killer both born in New York. Both have immigrant mothers. @realDonaldTrump — stuart stevens (@stuartpstevens) June 13, 2016

In August, Trump explained to Fox News' Bill O'Reilly that he didn't believe the 14th amendment's text, which grants U.S. citizenship to "all persons born or naturalized in the United States, and subject to the jurisdiction thereof," included in its protection the children of undocumented immigrants.

"I don’t think they have American citizenship, and if you speak to some very, very good lawyers — some would disagree. But many of them agree with me — you’re going to find they do not have American citizenship."

The Orlando assailant was born in New York and his parents in Afghanistan, but their immigration status has not been released.

Stevens was a successful Republican media consultant before being brought on as chief strategist by Romney. As a former Republican presidential nominee, Romney has led in-party opposition to Donald Trump, publicly speaking against the billionaire and questioning his qualifications for the presidency.

Trump has mostly made light of Romney's opposition to his candidacy, mocking the former Massachussetts governor's personal fortune — by most estimates around $250 million — and saying the 2012 nominee "walks like a penguin."