The speeches come as Republicans are making a concerted effort to win Jewish voters away from Obama by painting him as weak on Iran. The Iranian issue has dominated the annual American Israel Public Affairs Committee policy conference, and Netanyahu outlined clear contrasts with U.S. policy Monday by saying that sanctions had not worked and said Israel “cannot afford to wait much longer.”

Santorum decided to address the AIPAC crowd in person on what is known as Super Tuesday, while Romney and Newt Gingrich are set to give speeches via satellite.

Santorum said that the Obama and Netanyahu AIPAC speeches show “tragic disconnect” between how they view the threat from Iran.

“[Obama] says he has Israel’s back, but from everything I’ve seen on the conduct of this administration, he has turned his back on the people of Israel,” Santorum said. Santorum said that Obama needed to put an ultimatum in place for Iran to stop its nuclear program.

To read more on Santorum's AIPAC speech, click here.