Barack Obama spent the weekend scrambling to rescue his trade agenda amid warnings from US negotiating partners overseas that a failure by Congress to back the president would put plans for an ambitious Pacific Rim trade zone into a deep freeze.
Republicans and a small band of Democrats on Friday narrowly voted to grant Mr Obama the fast-track authority he needs to close the Trans-Pacific Partnership with Japan and 10 other countries, a deal that would be the largest concluded in a generation.
But in a significant rebuke to their president, Democrats defeated a related bill that would have extended a decades-old training and income-support programme for workers dislocated because of trade that the party and unions have long championed.