He's also cast doubt on Israel's commitment to peace with Palestine and suggested he'd approach the Israeli-Palestinian relationship as a neutral party, comments GOP competitors have taken him to task for.
"A deal is a deal," Trump said.
"A deal is not a deal when you're negotiating with terrorists," GOP candidate Marco Rubio retorted.
But the Presbyterian businessman has deep ties to the Jewish community; he's endorsed Israeli Prime Minister Benjamin Netanyahu for election, marched at the head of a Jewish parade in New York and has promised to support Israel "1,000 percent" if he's elected.
Oh yeah, and his daughter's Jewish. Ivanka Trump converted to Judaism before marrying her spouse, Jared Kushner, in 2009.
It's worth noting Trump's support for Israel isn't necessarily mutual; Netanyahu blasted Trump's stance on Muslim immigration to the U.S. in December. Trump canceled a trip to Israel shortly thereafter for what he claimed was a scheduling conflict.
This video includes images from Getty Images and clips from MSNBC, CNN and Right Side Broadcasting,