The confirmation of Hillary Rodham Clinton to be US secretary of state will be held up for at least a day due to the objection of a single senator. Sen. John Cornyn, a Republican, is blocking a unanimous vote on Clinton for Tuesday because he is not satisfied with Clinton's responses to concerns over foreign donations to her husband Bill Clinton's foundation, his office said. Cornyn's spokesman Kevin Mclaughlin said the senator is not trying to block her confirmation, but is seeking more debate on the donation issue. Jim Manley, spokesman for Senate Majority Harry Reid, a Democrat, said that if a voice vote is blocked there will be a roll call vote Wednesday. He predicted that "she will receive overwhelming bipartisan support at that time."