The Iranian nuclear deal was one of the main factors that influenced Donald Trump’s decision to run for president in 2016, his son, Eric Trump, said on Sunday.

“I think, honestly, the Iran nuclear deal was one of the things that made him jump into the race,” Eric Trump told John Catsimatidis on the “Cats Roundtable” radio program on AM 970 in New York. “I think that was a game-changer for him.”

“That is when he finally said, ‘Kids, I am going to do it. I am going to give this a real shot,'” he added.

In his campaign kickoff speech at Trump Tower on June 16, 2015, Trump slammed President Barack Obama for rushing to sign a nuclear deal with Iran. “If he makes that deal, Israel maybe won’t exist very long,” Trump proclaimed. “We have to protect Israel.” Last month, during a campaign rally in Wisconsin, Trump said the Iranians abused Sec. of State John Kerry ‘mentally” and “like a child” during the nuclear negotiations. “They took advantage of him like he was a baby.”

“My number one priority is to dismantle the disastrous deal with Iran,” Trump assured the Jewish community during his address at AIPAC’s policy conference in March.