With the Iraq War entrenched as a major issue for Democratic presidential candidates, Sen. Joe BidenJoseph (Joe) Robinette BidenDemocrats will need to explain if they shut government down over illegal immigration Trump thinks he could easily beat Sanders in 2020 match-up: report Biden marks MLK Day: Americans are 'living through a battle for the soul of this nation' 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.