Palestinian President Mahmoud Abbas warned that U.S. recognition of Jerusalem as Israel's capital would jeopardize the White House's Mideast peace efforts.

"Any American step related to the recognition of Jerusalem as capital of Israel, or moving the U.S. Embassy to Jerusalem, represents a threat to the future of the peace process and is unacceptable for the Palestinians, Arabs and internationally," Abbas told a group of Arab lawmakers from Israel, according to the official Wafa news agency.

U.S. officials said last week that President Donald Trump is poised to recognize Jerusalem as Israel's capital in a move that would upend decades of U.S. policy but also to put off once again moving the embassy from Tel Aviv.

The officials said Trump is expected to make his decision known in a speech on Wednesday, and on Sunday, his son-in-law and senior adviser Jared Kushner said — shortly after Abbas's warning — that the president continues to weigh his options on whether to recognize Jerusalem as Israel's capital and whether to proceed immediately in moving the U.S. Embassy from Tel Aviv to the holy city.

Trump still weighing whether to recognize Jerusalem as Israel's capital, Kusher says0:30

"The president is going to make his decision," Kushner said in a rare public appearance at an event hosted by the Brookings Institution, a Washington think-tank. "He is still looking at a lot of different facts."

Kushner's comments were his first public remarks on his efforts to restart peace talks between Israel and the Palestinians. And, they came as he faces increasing scrutiny over actions taken during the transition period following former national security adviser Michael Flynn's guilty plea on a charge of lying to the FBI.

Protests expected

The highly charged declaration of Jerusalem's status as capital risks inflaming tensions across the Middle East, and U.S. embassies and consulates around the region have been warned to expect protests.

But it would also offset disappointment from Trump supporters for deferring once again his campaign promise to move the U.S. Embassy to Jerusalem.

Israel regards Jerusalem as its capital, with most government functions, including the prime minister's office, Supreme Court and parliament, located in the holy city.

But the international community says the city's status should be determined through peace talks. The Palestinians claim east Jerusalem, captured by Israel in 1967, as their capital.

Abbas lobbies Arab allies for support

Abbas's spokesperson Nabil Abu Rdeneh said late Saturday that the president has been in touch with Arab and world leaders to rally opposition against any American move on Jerusalem. He said Abbas had been in contact with leaders of Egypt, Jordan, Saudi Arabia, Qatar, Kuwait and France.
 
"We believe that such an American step, if it takes place, will enter the region in a new course, and a dangerous phase whose results cannot be controlled," he said.

Trump's announcement will follow months of internal deliberations that grew particularly intense last week, according to officials familiar with the discussions.

Pence US Jordan

Vice President Mike Pence, left, talks with King Abdullah II of Jordan as they walk out of the White House in Washington, D.C., last month. Abdullah has warned the U.S. against abandoning America's carefully balanced position on Jerusalem. (Susan Walsh/Associated Press)

They described the president as intent on fulfilling his pledge to move the embassy but also mindful that doing so could set back his aim of forging a long-elusive peace agreement between Israel and the Palestinians, who claim part of Jerusalem as the capital of an eventual state.

Moving the embassy could spark widespread protest across the Middle East and undermine an Arab-Israeli peace push led by Kushner. Trump's campaign season promises won him the support of powerful pro-Israel voices in the Republican Party.

But as president, he has faced equally forceful lobbying from close U.S. allies, such as King Abdullah II of Jordan, who have impressed on him the dangers in abandoning America's carefully balanced position on the holy city.

President must relocate embassy or sign waiver

Under U.S. law signed by President Bill Clinton in 1995, the U.S. must relocate its embassy from Tel Aviv to Jerusalem unless the president waives the requirement on national security grounds, something required every six months.

If the waiver isn't signed and the embassy doesn't move, the State Department would lose half its funding for its facilities and their security around the world. Republicans have championed embassy security since a 2012 attack on American compounds in Benghazi, Libya.

Trump is likely to issue a waiver on moving the embassy by Monday, the officials said, though they cautioned that the president could always decide otherwise.

All presidents since Clinton have issued the waiver, saying Jerusalem's status is a matter for Israelis and Palestinians to negotiate. Trump signed the waiver at the last deadline in June, but the White House made clear he still intended to move the embassy.