[JURIST] GOP Senator George Voinovich [official website] surprised observers Thursday when he told colleagues on the Senate Foreign Relations Committee that he will not support the nomination of John Bolton [official profile] as US ambassador to the United Nations [US mission to UN, official website], although he said he would allow the nomination to go forward to the full Senate. Voinovich, who also balked at voting for Bolton last month [JURIST report], delivered a harsh critique of Bolton's diplomacy skills in his remarks (at one point calling him "the poster child of what someone in the diplomatic corps should not be") setting the stage for a tense committee vote set for 3 PM ET Thursday afternoon. Voinovich's vote against Bolton would result in a 9-9 tie if all other members vote along party lines. Committee chair Senator Richard Lugar [official website] had previously predicted that Bolton's nomination would pass 10-8 [JURIST report]. Bloomberg has more.