President Barack Obama plans to return five percent of his $400,000 annual salary to U.S. government coffers out of sympathy for federal workers furloughed as a result of massive budget cuts.

"The salary for the President, as with members of Congress, is set by law and cannot be changed," a White House official said Wednesday on condition of anonymity.

A majority of Palestinians believe the U.S. will fail to revive the Middle East peace process, according to a survey after Barack Obama's visit to the region, seen by Agence France Presse on Tuesday.

The Palestinian Center for Policy and Survey Research's report, conducted March 28-30, surveyed 1,270 people in the West Bank and the Gaza Strip.

Fewer Israelis see U.S. President Barack Obama as pro-Palestinian since his landmark visit to Israel and the occupied West Bank last week, according to an opinion poll published on Friday.

The poll carried by the English-language Jerusalem Post found that just 16 percent of respondents said Obama was "pro-Palestinian" against 36 percent before the March 20 to 22 visit.

U.S. President Barack Obama said Thursday he was "deeply concerned" for the health of Nelson Mandela, after the former South African president was again admitted to hospital.

"We are deeply concerned with Nelson Mandela's health -- he is a hero, I think, to all of us," Obama said as he met four leaders from sub-Saharan Africa at the White House.

U.S. President Barack Obama will visit Mexico in May, accepting an invitation from President Enrique Pena Nieto to discuss security, immigration and trade, the Mexican government said Wednesday.

The two leaders, who held telephone talks on Wednesday, will meet during the first week of May in a gathering that will "reaffirm the strategic importance of the bilateral relationship," the foreign ministry said.

U.S. President Barack Obama Tuesday named Julia Pierson as the first female chief of the Secret Service, the elite protection branch sullied by a prostitution scandal in Colombia last year.

Pierson, currently Secret Service chief of staff, has worked for the agency, which protects the president and his family and investigates currency counterfeiting and fraud, for 30 years.

U.S. President Barack Obama said Monday the time has come to reform America's "broken" immigration policy, renewing his appeal to lawmakers to clinch a deal that he said is now within reach.

At a swearing-in ceremony at the White House for a group of new U.S. citizens, Obama praised a bipartisan push in Congress for immigration reform, but prodded both parties to finish the job.

Slowing the buildup of greenhouse gases responsible for warming the planet is one of the biggest challenges President Barack Obama faces. The effects of rising global temperatures are widespread and costly: more severe storms, rising seas, species extinctions, and changes in weather patterns that will alter food production and the spread of disease.

Politically, the stakes are huge.

Israel and Turkey's recent rapprochement is a vital factor in developing peace and stability in the Middle East, U.S. Secretary of State John Kerry said.

U.S. President Barack Obama brokered the tentative reconciliation between Israeli Prime Minister Benjamin Netanyahu and Turkish Prime Minister Recep Tayyip Erdogan on Friday during his visit to Israel.

President Barack Obama returned home to Washington late Saturday after a four-day tour seeking to rekindle his engagement on Middle East peace and dominated by his embrace of Israel.

Air Force One landed at Andrews Air Force Base just outside the U.S. capital at 8:08 pm (00:08 GMT), hours ahead of schedule.