Powell retired in 1987; President Reagan's nomination of Robert Bork was defeated by the Senate, and his second nominee, Douglas Ginsburg, withdrew before a vote. Reagan's third nominee, Anthony Kennedy, was confirmed by the Senate. Brennan retired in 1990 and Marshall in 1991, giving President George H.W. Bush the opportunity to appoint Justices David Souter and Clarence Thomas. White retired in 1993 and Blackmun retired in 1994, and President Bill Clinton appointed Justices Ruth Bader Ginsburg and Stephen Breyer to replace them.