Mike Lee, R-Utah, marks the first time lawmakers have invoked the decades-old War Powers Resolution to halt American military involvement in a foreign conflict. Lawmakers from both parties have criticized Trump for not condemning Saudi Arabia strongly enough for the killing.
Supporters made it clear that their votes were also aimed at expressing their frustrations with Trump's continued support for Saudi Arabia's Crown Prince Mohammed bin Salman, who has been accused of orchestrating the murder of Washington Post journalist Jamal Khashoggi in Istanbul in October a year ago. Advisers would suggest Trump veto the measure, the statement said.
A statement from the administration said the bill "seeks to override the president's determination as commander in chief" and will "establish bad precedent".
"This Senate vote moves us one step closer to ending USA support for the catastrophic war in Yemen, a war that makes America complicit in the worst humanitarian crisis in the world", Paul Kawika Martin, senior director for policy and political affairs at Peace Action, said in astatement.
"Remember, we're only getting a couple of Republicans and they're voting with us as a matter of conscience", said Sen.
In that case too, he has promised to use his veto. Five years of fighting has resulted in a devastating humanitarian crisis in the country.
The Yemeni civil war is a proxy war fought between forces supported by Saudi Arabia on one side and troops supported by Iran on the other side.
In this way, the US only "prolongs the conflict and the humanitarian crisis", he said.
Activists take part in a rally in front of the White House in Washington, DC, to protest against Saudi Arabia's actions in Yemen, on April 13, 2017.
Senate Armed Services Committee chairman Jim Inhofe, R-Okla., defended USA involvement, describing it as "intelligence support that helps construct no strike lists that enable humanitarian efforts and protect humanitarian aid workers", and "not the tip of the spear".
"If a UAV or missile hit a population center because of this resolution, it would be unforgivable", he said. Todd Young (R-IN) said: "It offends my sensibilities-and I know it offends the sensibilities of all Americans-that there are countries in this day and age that are using food as a weapon of war". All Democratic Senators voted in support of the resolution.
The Senate is expected to vote on a resolution to reverse Trump's emergency declaration on border security issue with Mexico on Thursday, which is already passed by the House. The Senate unanimously agreed to retain similar language today by voice vote with an amendment from Sen.