Thank you Lincoln Chafee
Sen. John Bolton has resigned as Ambassador to the United Nations. He was given a recess appointment to the job two years ago after the US Senate refused to confirm him.
With the Senate wrapping up business under Republican control, George W. Bush had called for Bolton to be renominated for the job. Outgoing Sen. Lincoln Chafee (R-RI), a member of the Foreign Relations Committee which has jurisdiction over the matter, publically opposed Bolton. This led to the committee headed by Sen. Richard Lugar (R-IN) refusing to hold a vote on the nomination once it became clear the votes weren't there for an endorsement.