Hillary Clinton Hillary Diane Rodham ClintonJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Momentum growing among Republicans for Supreme Court vote before Election Day Warning signs flash for Lindsey Graham in South Carolina MORE returned 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 fire after he said she's unqualified for the Oval Office, throwing his comments about torture and business dealings with pageants back at him.

"If you cite supporting torture and hosting pageants as foreign policy 'qualifications,' your definition needs work," the Democratic presidential front-runner tweeted

If you cite supporting torture and hosting pageants as foreign policy "qualifications," your definition needs work. https://t.co/3JbmzuxEK5 — Hillary Clinton (@HillaryClinton) May 20, 2016

ADVERTISEMENT

It was the latest salvo in the pair's war of words Thursday, which seemed to start with Clinton's CNN interview that afternoon during which she blasted his views and rhetoric on foreign policy and said he was unqualified to be president.

Trump, the presumptive Republican nominee, shot back by defending his proposal to temporarily ban Muslims from entering the United States while arguing that Clinton herself was not qualified to be president.

Trump's campaign said in a statement that the former secretary of State suffers from "bad judgement" and is "unfit to serve as President."

The dueling came as talk of terrorism resurfaced following the disappearance of a passenger jet flying from Paris to Cairo, the cause of which is being investigated.