The surgery was the latest setback to President Trump’s effort to bar transgender people from serving in the military.
The report from the Congressional Budget Office was an authoritative accounting of the cost of rebuilding a nuclear arsenal that relies on Cold War-era technology.
Two top Trump administration officials urged Congress not to mess with a 16-year-old law that authorized the war against Al Qaeda — or at least to impose no new limits.
The secretary of defense has been deft at leveraging the president’s respect for him into room to maneuver on his policy goals.
The defense secretary also said the United States had not shot down any missiles so far because they did not directly threaten American territory or allies.
The C.I.A. is pushing for expanded powers to carry out its own drone strikes, and the White House is said to favor the proposal despite Pentagon objections.