[JURIST] Senator Richard Lugar [official website], chairman of the Senate Foreign Relations Committee [official website], said Sunday that he expects a party-line vote this week to approve the controversial nomination of John Bolton [official profile] as US ambassador to the United Nations [US Mission to the UN official website]. Appearing Sunday on CBS News' Face the Nation program, Lugar predicted that the committee will vote Thursday 10-8 to send Bolton's nomination to the full Senate. A similar vote was expected when the Senate committee was due to vote last month, but the vote was postponed [JURIST report] after Republican Senator George Voinovich [official website] asked for additional time to consider the nomination. Bolton has been criticized for his harsh views of the UN as an institution and during Bolton's April confirmation hearings allegations [JURIST report] were made that Bolton was a "serial abuser" of lower-level officials who challenged his views. Democrats have argued that Bolton's behavior makes him unsuitable for the UN post. Democratic Senator Joseph Biden [official website], ranking member of the Foreign Relations Committee, has said that he is still waiting for additional information on Bolton from the State Department. Biden told CBS News that he is considering trying to delay the committee vote if he does not receive the material. Read a full transcript [PDF] of the interview with Lugar and Biden. AP has more.