Leading US Republicans have taken part in a televised debate for the right to challenge President Barack Obama. <br /><br />The seven hopefuls are seeking their party's nomination ahead of the 2012 presidential race.<br /><br />They refrained from attacks on each other, but they hit out at Obama's economic record and his foreign policy decisions.<br /><br />Al Jazeera's Patty Culhane reports from Manchester, New Hampshire.
