WASHINGTON — The Senate is poised to pass a bill that bans moving Guantanamo Bay detainees to the United States — something Barack Obama has been trying to do since he was sworn in as president.The Senate planned to vote today on the $607 billion defense policy bill, which passed the House last week, 370-58.The legislation has become a lightning rod for debate over whether the president needs congressional approval to move some of the remaining 112 detainees from the U.S. detention center in Cuba to the United …