Nearly every top American official with knowledge and experience spoke out against the provisions, including the attorney general, the defense secretary, the chief of the F.B.I., the secretary of state, and the leaders of intelligence agencies. And, for weeks, the White House vowed that Mr. Obama would veto the military budget if the provisions were left in. On Wednesday, the White House reversed field, declaring that the bill had been improved enough for the president to sign it now that it had passed the Senate.

This is a complete political cave-in, one that reinforces the impression of a fumbling presidency.