With the Iraq War entrenched as a major issue for Democratic presidential candidates, Sen. Joe BidenJoe BidenMoore, Strange advance in Alabama GOP primary Alabama GOP Senate primary: live results White House clarifies: We condemn all violence MORE (D-Del.) has said he wants Congress to repeal its 2002 authorization of the president’s use of force.

Biden is preparing a proposal with Sen. Carl Levin (D-Mich.). Below, Biden explains his intentions in a speech at the Brookings Institution.

He says the original authorization to destroy weapons of mass destruction, bring Iraq into accordance with U.N. resolutions and, if necessary, depose Saddam Hussein “is no longer relevant to the situation in Iraq.