The lawmakers in the Republican-controlled chamber voted with a 54 to 46 majority, thus approving the presidential war powers which direct President Trump "to remove the United States Armed Forces from hostilities in or affecting the Republic of Yemen" within 30 days. (The House recently passed its own similar resolution.) The House, which is now under Democratic management, easily has the votes to pass S.J.Res. 7 As Amended.
As Saudi-led coalition airstrikes claimed hundreds of lives over the years, mostly in northern Yemen where the Houthis are based, the US insisted it plays no role in targeting Yemenis.
Trump has threatened to veto the bill if it reaches his desk, saying it would undermine the counterterrorism fight.
But its full passage would set a historic marker.
The measure was co-sponsored by Sen.
Romney said while he has concerns about Saudi Arabia's recent behavior, particularly the murder of Khashoggi, ending support would undermine USA allies and security interests in the region by emboldening Iran, hampering counterterrorism efforts, and potentially worsening the humanitarian crisis.
"This is historic. For the first time in 45 years, Congress is one step closer to withdrawing USA forces from an unauthorized war", Sen. Susan Collins of Maine, Steve Daines of Montana, Mike Lee of Utah, Jerry Moran of Kansas, Lisa Murkowski of Alaska, Rand Paul of Kentucky and Todd Young of Indiana.
Approaching its fifth year, the war in Yemen has killed thousands and left thousands more on the brink of starvation, creating what the United Nations called the world's worst humanitarian crisis.
Since at least 9/11, US foreign policy has been dominated by an executive branch run by leaders of both parties seemingly bent on expanding where and when the United States is involved in war, a status quo that allowed the Yemen war to continue without congressional authorization.
Coalition forces led by Saudi Arabia and the United Arab Emirates have relentlessly bombed Yemen since 2015 in an effort to oust the Houthi rebels controlling the capital city of Sana'a.
In that case too, he has promised to use his veto. But U.S. withdrawal is only a matter of time-that is, a matter of Trump's time in office.
Change in the U.S. -Saudi relationship is obviously due in large part to the murder of Washington Post columnist Jamal Khashoggi, which the Central Intelligence Agency concluded with high confidence was ordered by Saudi Crown Prince Mohammed bin Salman.
Republicans and Democrats alike have bristled over the White House's apparent embrace of the kingdom and its leadership.
The Senate earlier blamed Saudi Crown Prince Mohammed bin Salman for the death of the journalist and expressed concerns over Trump's lax response on the issue.