On Thursday, a day after Speaker Nancy Pelosi asked President Trump to delay his State of the Union address, he denied her access to a military plane for a congressional visit to American troops in Afghanistan. “Obviously,” he said in a letter, flying commercial remained an option.

Mr. Trump also canceled plans to send a U.S. delegation to Davos, Switzerland, next week for the World Economic Forum.

The impact: The partial government shutdown is in its 28th day, and federal courts are running out of money. They’re expected to be able to continue funded operations through at least next Friday.