WASHINGTON — President Obama is enjoying a winning streak lately, with the Supreme Court reaffirming his signature health care law and Iran agreeing to curbs on its nuclear program. But one longstanding goal continues to bedevil him: closing the wartime prison at Guantánamo Bay, Cuba.
The administration’s fitful effort to shut down the prison is collapsing again. Ashton B. Carter, in his first six months as defense secretary, has yet to make a decision on any newly proposed deals to transfer individual detainees. His delay, which echoes a pattern last year by his predecessor, Chuck Hagel, is generating mounting concern in the White House and State Department, officials say.