In December, the Senate passed a joint resolution invoking the War Powers Act and directing the president to remove U.S. armed forces from the conflict in Yemen. The then Republican-controlled House didn’t take it up, but now that it is likely to pass the House, the resolution has been re-introduced into the Senate by Bernie Sanders and cosponsored by 17 Democrats and one Republican. As the previous Senate passed the similar resolution, there’s a chance the new one will also pass, opening the way to a veto fight. The bill is currently tabled (over an amendment?), but there seem to be enough Republicans voting with the Democrats to pass it eventually.
Contact your Senators and ask them to support S.J. Res. 7, “A joint resolution to direct the removal of United States Armed Forces from hostilities in the Republic of Yemen that have not been authorized by Congress.”