Flight delays stemming from the shutdown would continue through the holidays and a "substantial" number of Americans were on course to see their holiday plans disrupted, Transportation Secretary Sean Duffy warned Sunday.
Duffy spoke as a federal government shutdown was into its 40th day in Washington, D.C., where senators were set to convene for a rare Sunday session as negotiations in the upper chamber drag on. Neither side appears close to backing down, as Democrats and Republicans battle over expiring subsidies for the Affordable Care Act's healthcare exchanges.
