Two US Republican and two Democratic senators planned to meet with US soldiers and military leaders in Iraq over the weekend, as well as Iraqi officials, the envoys said in a statement Saturday.
Republican Senator John Sununu led the congressional delegation that included fellow Republican Lisa Murkowski and Democrats Amy Klobuchar and Sheldon Whitehouse.
"This trip provides an important opportunity to see the situation on the ground in Iraq in person," Sununu said in a statement.
On their way back to the United States, the lawmakers will stop at the Landstuhl Regional Medical Center in Germany, located near a US air base, to visit US soldiers wounded in the Iraq and Afghanistan wars.
The trip comes amid heated debate in Congress over measures aiming to force President George W. Bush to change his Iraq policy.
"After four years in Iraq, there needs to be a change of course and we must get our policy right so we can bring our troops home as safely and quickly as possible," Klobuchar said.
Convinced their capture of Congress in elections last November was rooted in opposing the conflict, Democrats are vowing to force Bush to bring US troops home from Iraqi battlefields where more than 3,200 American soldiers have died.
Democrats failed to pass a bill in the Senate Thursday that set a goal for the withdrawal of US troops by March 2008.
The House Appropriations Committee however voted Thursday to include in a war spending bill a Democratic plan for a timetable that would get troops out of Iraq by September 2008 at the latest.
The House is due to debate next week Bush's 124 billion dollar budget request for the wars in Iraq and Afghanistan.
