WASHINGTO N - O CTO BER 31: Chief Justice John G. Roberts (L) Justice Clarence Thomas (C) and Justice Sandra Day O 'Connor pose for photographers at the U.S. Suprem e Court O ctober 31, 2005 in Washington DC. Earlier in the day U.S. President George W. Bush nom inated judge Sam uel Alito to replace Sandra Day O 'Connor who is retiring once her replacem ent is confirm ed by the Senate.