Harvard Law Professor Emeritus Alan Dershowitz. (Fox & Friends)

(CNSNews.com) -- Harvard Law Professor Emeritus Alan Dershowitz says that although he and many other liberal Democrats supported President Obama's domestic policies, Obama “will go down in history as one of the worst foreign policy presidents ever.”

“He will go down in history, President Obama, as one of the worst foreign policy presidents ever,” Dershowitz said during a Monday interview on Fox & Friends. “What he did to Syria, and what he was partly responsible for happening in Aleppo, creating a vacuum for Russia. …

“Look, I supported his domestic policy. I liked him on Supreme Court appointments. But he created a terrible conflict for people, many like me liberal Democrats who support his domestic policy, but think he was an appalling--appalling--president when it comes to foreign policy. He hurt America so badly."

Dershowitz was particularly upset with Obama for abstaining from a vote on a recent United Nations Security Council resolution condemning Israel for constructing settlements on land it has occupied since the 1967 Six-Day War.

In doing so, Dershowitz said, Obama “stabbed” the longtime U.S. ally “in the back”.

Obama “called me into the Oval Office before the election and he said to me: ‘Alan, I want your support. And I have to tell you, I will always have Israel’s back.’

“I didn’t realize what he meant is that he would have its back to stab them in the back. And he just stabbed them in the back," Dershowitz said.

Dershowitz also accused Obama of pulling a “bait and switch” by telling the American public “that ‘this is all about the settlements deep in the West Bank’.

“And yet he allowed his representatives to the UN to abstain (which is really [a vote] for) a resolution that says Jews can’t pray at the Western Wall, Jewish students can’t go to Hebrew University, Jewish and Arab patients can’t go to Hadassah Hospital, Jews can’t live in the Jewish quarter where they’ve lived for thousands of years,” he said.

“And he’s gonna say: ‘Whoops, I didn’t mean that.’ Well, read the resolution. You’re a lawyer. You went to Harvard Law School!” Dershowitz exclaimed.

“And this will make peace much more difficult to achieve because the Palestinians will now say: ‘We can get a state through the UN, we can get a state through the BDS movement,’ this will encourage that, ‘we can get a state through the International Criminal Court,’ this will encourage that, ‘we don’t have to negotiate, we don’t have to make painful compromises.'

“That’s not the way policy should be made, to get even in the lame duck period when there are no checks and balances, and you don’t have to worry about the next election. It’s the most undemocratic thing a president can do – to tie the hands of his successor during the lame duck period,” he continued.

“The president has deliberately tied the hands of his successor. It’s going to make it much harder for President Trump to bring back peace.”