The Constitution gives Congress an essential role in decisions about war—and lawmakers who defend that responsibility deserve our applause. The U.S. House of Representatives has passed a bipartisan war powers resolution directing the president to end U.S. military involvement in the conflict with Iran unless Congress provides authorization. The measure reflects the longstanding constitutional principle that Congress has the authority to decide when the nation enters armed conflict. The Founders divided war powers between the executive and legislative branches to ensure that decisions about military action receive careful debate, public accountability, and oversight by the representatives elected by the American people. Regardless of political party, members of Congress have a duty to uphold the Constitution and protect the checks and balances that prevent any one branch of government from exercising unchecked power. Congressional oversight helps ensure that the gravest decisions our nation makes are subject to transparency and democratic accountability. By approving this resolution, House members affirmed the importance of Congress's constitutional responsibilities and the need for a full public debate before the United States becomes involved in prolonged military conflict. Add your name to applaud the House members who stood up for the Constitution, defended Congress's war powers, and reaffirmed that decisions about war deserve democratic accountability.