A group of former U.S. diplomats are publicly calling for the Senate to reject John Bolton’s nomination to become the next U.S. ambassador to the United Nations. 59 former diplomats have signed an open letter outlining their views to Senator Richard Lugar. Lugar is the chair of the Senate Foreign Relations Committee which will hold hearings on Bolton’s nomination on April 7. Bolton has been one of the fiercest critics of the United Nations within the Bush administration. In 1994 Bolton said '’if the UN secretariat building in New York lost 10 stories, it wouldn't make a bit of difference.’’ He has also called for the US to stop paying dues to the United Nations.