For the third time in as many months, the United States House of Representatives has moved to reclaim its constitutional authority over war, voting 220 to 204 to curtail President Trump's ability to wage conflict against Iran without congressional approval. Seven Republicans joined the effort — three for the first time — in a fracture that speaks to something older than partisan loyalty: the enduring tension between executive power and the legislature's role as the people's check on war. The resolution will almost certainly meet a presidential veto, yet its repetition carries its own meaning,