The United States Senate voted Wednesday afternoon to advance a resolution withdrawing all unauthorized U.S. military support for the Saudi-led war on Yemen, which has created, according to the UN, the world’s worst humanitarian catastrophe and killed more than 50,000 people. It’s the first time a majority in either chamber of Congress has endorsed a bill which calls for an end to U.S. involvement in the Yemen war, a war which would not be happening if it weren’t for U.S. involvement. Mehdi Hasan is joined by Senator Chris Murphy, one of the big drivers behind this resolution, Yemeni-Canadian activist and academic Shireen Al Adeimi, and The Intercept’s national security reporter Alex Emmons to discuss what the Senate’s vote means and the next steps forward.