U.S. presidential candidate Barack Obama has arrived in Jordan after a two-day visit to Iraq.

The Democratic senator is expected to meet with King Abdullah in the Jordanian capital, Amman, later Tuesday.

Earlier, Obama visited Iraq's Anbar province for meetings with Sunni tribal leaders who helped U.S. forces fight al-Qaida in Iraq insurgents.

On Monday, Obama met with Iraqi Prime Minister Nouri al-Maliki in Baghdad.  The Illinois senator released a statement late Monday saying Iraqis want an "aspirational timeline" for the withdrawal of U.S. troops from Iraq.

Senator Obama also said Prime Minister Maliki stated his hope that "U.S. combat forces could be out of Iraq in 2010."

Obama made the comments in a joint statement with Republican Senator Chuck Hagel and Democratic Senator Jack Reed, who are accompanying him on the fact-finding mission.

The senators acknowledged violence in Iraq is down significantly, but said political and economic development continues to lag.

Republican U.S. presidential candidate John McCain said Monday that Obama was wrong to oppose the U.S. troop surge in Iraq that began last year.  Senator McCain said the United States is winning the war in Iraq and more troops will be able to come home as conditions improve.

After his talks in Jordan, Obama is expected to travel to the West Bank. 

He will also visit the southern Israeli border town of Sderot, which has become the frequent target of rocket attacks by Palestinian militants.  He will meet with leaders on both sides, including Palestinian President Mahmoud Abbas and Israeli Prime Minister Ehud Olmert. 

Some information for this report was provided by AFP, AP and Reuters.