Video   U.S. policy under President-elect Obama Obama, McCain ready to make history Obama, McCain stage final rallies Obama, McCain campaign hard in key battleground McCain, Obama on campaign trail Candidates gear up for U.S. presidential election Obama picks up key endorsement McCain wins S.C. Republican primary Hillary, Obama attend church services U.S. presidential hopefuls face New Hampshire challenge Hillary Clinton embarks on journey to run for president US, Iraq hold talks on future relationship U.S. announces three parallel steps in Middle East strategy