March 27, 2006 -- STATE Senate officials are considering an unprecedented "censure" vote against violence-prone Queens Democratic Sen. Ada Smith, who was charged last week with throwing hot coffee in the face of an aide. As soon as the latest charge against the erratic Smith became public, Senate officials began researching the possibility of expelling or "impeaching" Smith, but concluded that state law does not allow such dramatic action, a senior Senate official said. State law does require the expulsion of a legislator convicted of a felony, but the latest charge against Smith - like one involving a confrontation with...