GOP vows to keep his campaign focused on defeating Obama Margin of victory Iowa caucus results . is closest ever for GOP presidential contest . Santorum 's campaign says he proved he 's the only conservative who can beat Paul to endorse Romney , senior Romney source says . Romney McCain says `` the message of liberty is appealing to everybody '' Romney gets 30,007 votes , Santorum collects 30,007 .
GOP vows to keep his campaign focused on defeating Obama Margin of victory is closest ever for GOP presidential contest . Santorum 's campaign says he proved he 's the only conservative who can beat Paul to endorse Romney , senior Romney source says . Romney McCain says `` the message of liberty is appealing to everybody '' Romney gets 30,007 votes , Santorum collects 30,007 .