Sen. Rand PaulRandal (Rand) Howard PaulGOP lays debate trap for 2020 Democrats Overnight Defense: Trump says he doesn't need exit strategy with Iran | McConnell open to vote on Iran war authorization | Senate panel advances bill to restrict emergency arms sales Senate panel advances bill to restrict emergency arms sales MORE (R-Ky.) and a bipartisan group of senators has introduced legislation to repeal the Authorization for Use of Military Force (AUMF) in Iraq, which they say would formally end the war in Iraq if it were passed.

The AUMF was first passed in 2002, which launched a war that lasted nearly nine years. The last U.S. troops left the country at the end of 2011.

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"Two years ago, President Obama declared the war in Iraq over," Paul said Tuesday. "With the return of our troops and practical side of the mission concluded, I feel it is necessary to bring the war to an official and legal end.

"This bipartisan piece of legislation expressly preserves the President's authority to protect our embassy and personnel in Iraq, and ensures that our military involvement in Iraq is officially closed and that any future engagement will require Congressional authorization and support, as required by the Constitution."

Paul introduced the bill along with Sens. Ron WydenRonald (Ron) Lee WydenThe Hill's Morning Report - Democratic debates: Miami nice or spice? Senate Finance leaders in talks on deal to limit drug price increases Overnight Health Care — Campaign for Tobacco-Free Kids — Poll finds Trump vulnerable on health care in battleground states | HHS must respond to petition on abortion referral ban by Thursday | Wyden presses health officials about CBD regulations MORE (D-Ore.) and Kirsten GillibrandKirsten Elizabeth GillibrandGOP lays debate trap for 2020 Democrats Gambling website offers bets ahead of Democrats' first debate New York doctor says marijuana should 'absolutely' be taken off controlled substance list MORE (D-N.Y.), who agreed it's time to formally end military activities in Iraq.

"Now that American troops have come home, it makes sense to bring this chapter in our nation's history to a close," Wyden said.

Rep. Barbara LeeBarbara Jean LeeBipartisan House duo unveils amendment to block Iran strike without Congress's approval The Trump administration's plan to change the poverty line would hurt communities who need help the most GOP rep: Trump needs to retaliate against Iran to deter other hostile nations MORE (D-Calif.) has introduced similar legislation in the House, along with five House Democrats.