U.S. Senator John McCain (R-AZ) walks to vote on the nomination of John Bolton as the U.S. ambassador to the United Nations at Capitol Hill in Washington June 20, 2005. Senate Democrats on Monday again blocked the nomination of Bolton as U.N. Ambassador, raising the possibility that President George W. Bush may seek to bypass lawmakers and put him in the job without a confirmation vote. In a vote of 54-38, Republican leaders fell short of the 60 votes needed to advance the nomination for a confirmation vote. REUTERS/Yuri Gripas YG/VP