Donald Trump said that if he is elected president, he'll know within six months whether he can achieve an elusive peace accord between Israelis and Palestinians.

Donald Trump speaks during a campaign rally December 2, 2015 in Manassas, Virginia. (Photo by Alex Wong/Getty Images)

But he has doubts about each side's commitment to the peace process.

Trump was short on specifics, or even whether he supports the longstanding U.S. Government goal of a two-state solution.

The Republican candidate said he didn't want to show any bias in favor of one side or the other in case he does become president.