What Happened: U.S. President Donald Trump has vetoed the Congressional War Powers Act aimed at ending U.S. involvement in the Saudi-led intervention in the Yemeni civil conflict, CNN reported April 17.

Why It Matters: Trump’s veto effectively ends the present congressional challenge to U.S. executive authority, as the U.S. Senate is unlikely to override the presidential veto. Instead, opponents of U.S. involvement in the conflict will now seek to find different avenues to pressure the U.S. government.

Background: The passage of a war powers resolution related to U.S. involvement in the Yemeni civil conflict highlights growing opposition among lawmakers to the current nature of U.S.-Saudi relations.