Republicans are growing frustrated with Mr. Johnson’s approach to governing with a razor-thin majority, saying that he promises more than he can achieve, frustrating the disparate groups in his caucus.

© Demetrius Freeman for The New York Times

A Republican blockade derailed a Pentagon policy bill and other legislation as the far right pressed for action on a voting bill championed by President Trump.

© Eric Lee for The New York Times

The court’s decision was a major rebuke to President Trump, who falsely asserted that Congress could reverse it through legislation.

© Tierney L. Cross for The New York Times