Senate Democrats refused to move ahead with a spending bill needed to keep the Department of Homeland Security running because it lacked limits they have demanded on federal immigration agents.
The measure had no path forward in the Senate, where Democrats are all but certain to block it and Republicans have said they will not try to skirt filibuster rules to ram it through.
Democrats have demanded that Republicans agree to accountability measures to rein in personnel from Immigration and Customs Enforcement and other agencies.