text: Bolton stated in June 2004 congressional testimony that Iran was lying about enriched uranium contamination: "Another unmistakable indicator of Iran's intentions is the pattern of repeatedly lying to ... the IAEA ... when evidence of uranium enriched to 36 percent was found, it attributed this to contamination from imported centrifuge parts." However, later isotope analysis supported Iran's explanation of foreign contamination for most of the observed enriched uranium. At their August 2005 meeting the IAEA's Board of Governors concluded: "Based on the information currently available to the Agency, the results of that analysis tend, on balance, to support Iran's statement about the foreign origin of most of the observed HEU [highly enriched uranium] contamination."
  Bolton has often been accused of attempting to pressure the intelligence community to endorse his views. According to former coworkers, Bolton withheld information that ran counter to his goals from Secretary of State Colin Powell on multiple occasions, and from Powell's successor Condoleezza Rice on at least one occasion.
  Ambassador to the United Nations (2005–2006)
  On March 7, 2005, Bolton was nominated to the post of United States Ambassador to the United Nations by President George W. Bush.
  Bolton said previously at a forum that "there is no such thing as the United Nations" and "[i]f the U.N. secretary building in New York lost 10 stories, it wouldn't make a bit of difference". Several officials from U.N. Security Council member states were shocked of the nomination, Bush would name someone they believed had a known antipathy toward the United Nations. As a result of a Democratic filibuster, he was recess-appointed to the post on August 1, 2005. Bolton's nomination received strong support from Republicans but faced heavy opposition from Democrats due initially to concerns about his strongly expressed views on the United Nations.