[##_1L|1031679674.jpg|width="174" height="197" alt=""|_##]Unable to win Senate confirmation, U.N. Ambassador John Bolton will step down when his temporary appointment expires within weeks, the White House said Monday. President Bush named Bolton to the position on an interim basis last year through a recess appointment that will expire when the new congressional session begins in January. A September vote in the Senate Foreign Relations Committee on whether to confirm Bolton's nomination as the permanent US ambassador to the UN was delayed  in what the Bush administration called a "political" block due to old grievances, not his performance as ambassador. Bolton's nomination to the position in 2005 was stalled on the Senate floor after the Foreign Relations Committee declined to endorse the nomination. Senate Democrats at the time said Bolton "lacked credibility" due to accusations that he took advantage of intelligence analysts through his role as the head US diplomat for arms control and Bolton's inaccurate statements on a confirmation process questionnaire.

President Bush, in a statement, said he was "deeply disappointed that a handful of United States senators prevented Ambassador Bolton from receiving the up or down vote he deserved in the Senate."

"They chose to obstruct his confirmation, even though he enjoys majority support in the Senate, and even though their tactics will disrupt our diplomatic work at a sensitive and important time," Bush said. "This stubborn obstructionism ill serves our country, and discourages men and women of talent from serving their nation."

Bush gave Bolton the job temporarily in August 2005, while Congress was in recess. Under that process, the appointment expires when Congress formally adjourns, no later than early January.

The White House resubmitted Bolton's nomination last month. But with Democrats capturing control of the next Congress, his chances of winning confirmation appeared slight. The incoming chairman of the Senate Foreign Relations Committee, Democratic Sen. Joe Biden of Delaware, said he saw "no point in considering Mr. Bolton's nomination again."