At the meeting, the two men discussed the buildup of Hezbollah terror networks along Israel's northern border with Syria on the Golan Heights. "Once again, this administration is playing risky partisan games with US foreign policy and the US-Israel relationship", J Street concluded.
Moscow warned the policy U-turn could spark new conflicts.
"Yesterday US President Trump's unfortunate statement about the Golan Heights brings the region to the edge of a new crisis", Erdogan told an emergency meeting of the Organisation of Islamic Cooperation (OIC) in Istanbul.
"At the moment it's just a call".
"Russia's foreign ministry complained that formal USA recognition of Israel's annexation of the Golan Heights would represent a violation of United Nations Security Council resolutions".
The civil war in Syria over the past eight years has been the priority and the areas adjacent to the Golan almost fell to the rebels at one point.
"The League of Arab States fully supports Syria's right for its occupied territory".
Trump's comments showed the extent of his administration's "blind bias" towards Israel.
The Syrian government said the Golan was an "indivisible" part of Syrian territory and recovering it "via all means guaranteed by worldwide law is still a priority".
Germany said any change in borders should be "done through peaceful means between all those involved", while France said it did not recognise the Israeli annexation of the Golan and any recognition was contrary to global law.
Turkish President Recep Tayyip Erdogan said in a speech at a meeting of the Organisation of Islamic Cooperation: "We can not allow the legitimisation of the occupation of the Golan Heights".
Also on Wednesday, together with Pompeo in Jerusalem, Netanyahu held a summit with Cypriot President Nicos Anastasiades and Greek Prime Minister Alexis Tsipras.
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Mr Netanyahu, who faces a strong opposition at home, recently stepped up efforts to gain global recognition for the Israeli annexation.
Israeli soldiers stand guard at the Quneitra crossing in the Golan Heights.
Against this backdrop of hostility towards the US move, Secretary of State Mike Pompeo visited Beirut where he took aim at Israel's main regional foes - Hezbollah and its backer Iran - and declared the success of USA sanctions against them.
Erekat affirmed that the U.S. administration's announcement on Syria's Golan Heights coupled with its unilateral decisions recognizing Jerusalem as Israel's undivided capital, legitimizing illegal Israeli settlements and dropping the two-state solution are meant to "make a fundamental change in the USA policies towards the Palestinian-Israeli conflict".
And here comes an American president and says: 'no matter what the global law says, no matter what the world says. Haaretz pointed to President Trump's decision to move the US embassy in Israel to Jerusalem when indicating he could use the same method to officially change the USA position on the Golan Heights.
But Fouad Mundhir, a Syrian whose home village is in Israeli-occupied Golan, said Trump was "cancelling the will of an entire nation. We cooperate on everything, from fighting fires to energy".
Russia, which has always been a key backer of Syria and is fighting alongside forces loyal to President Bashar Assad in the Syrian civil war, condemned Trump's declaration as a violation of United Nations decisions.
Still, Arab occupied land remains a sensitive topic, even though Gulf countries may be more interested right now in partnering with Israel against Iran than in upholding notions of Arab nationalism.
Trump is likely to sign the presidential document when Israeli Prime Minister Benjamin Netanyahu visits Washington on Monday, Reuters reported.
European Council President Donald Tusk said on Friday the EU was holding its line on the Golan Heights despite Trump's move.
However, Leon Panetta a veteran Democrat who served as Central Intelligence Agency director and defense secretary, among other roles, blasted Trump for "tweeting out another policy that obviously has not been worked out with our global partners".