Candidates React to Gitmo Ruling

Obama in statement: "The Court’s decision is a rejection of the Bush Administration’s attempt to create a legal black hole at Guantanamo - yet another failed policy supported by John McCain." Read it here.

McCain says in Boston: "It obviously concerns me." Repeats call for Guantanamo to be closed.

Comes after the Supreme Court rules detainees can challenge their confinement in U.S. courts.