How are they going to get enough votes to pass something that would limit Bush’s power to fight this war. This won’t even make Bush’s veto pen:

Senate Democrats pledged renewed efforts Sunday to curtail the Iraq war, suggesting they will seek to limit a 2002 measure authorizing President Bush’s use of force against Saddam Hussein.
The top Republican on the Senate Foreign Relations Committee said the proposal had little chance of succeeding. “I think the president would veto it and the veto would be upheld,” said Sen. Richard Lugar (news, bio, voting record) of Indiana.
[…]
Sen. Carl Levin (news, bio, voting record), who chairs the Armed Services Committee, said Democratic senators would probably seek to capitalize on wavering Republicans to limit the “wide-open authorization” Congress gave Bush in 2002.
“We will be looking at a modification of that authorization in order to limit the mission of American troops to a support mission instead of a combat mission, and that is very different from cutting off funds,” said Levin, D-Mich.
Sen. Joe Biden, a 2008 presidential candidate who leads the foreign relations panel, said the 2002 authorization should be repealed to restate the president’s authority and clarify the mission of U.S. troops in Iraq.

But this is good news:

A day after Republicans foiled a Democratic bid to repudiate Bush’s deployment of 21,500 additional combat troops to Iraq, Senate Democrats declined to embrace measures – being advanced in the House – that would attach conditions to additional funding for troops.