here is the breakdown:
William H. Rehnquist, President Nixon nominated him to the Supreme Court, and he took his seat as an Associate Justice on January 7, 1972. Nominated as Chief Justice by President Reagan, he assumed that office on September 26, 1986.
John Paul Stevens, President Ford nominated him as an Associate Justice of the Supreme Court, and he took his seat December 19, 1975
Sandra Day O’Connor, President Reagan nominated her as an Associate Justice of the Supreme Court, and she took her seat September 25, 1981.
Antonin Scalia, President Reagan nominated him as an Associate Justice of the Supreme Court, and he took his seat September 26, 1986.
Anthony M. Kennedy, President Reagan nominated him as an Associate Justice of the Supreme Court, and he took his seat February 18, 1988.
David Hackett Souter, President Bush nominated him as an Associate Justice of the Supreme Court, and he took his seat October 9, 1990
Clarence Thomas, President Bush nominated him as an Associate Justice of the Supreme Court, and he took his seat October 23, 1991.
Ruth Bader Ginsburg, President Clinton nominated her as an Associate
Justice of the Supreme Court, and she took her seat August 10, 1993.
Stephen G. Breyer, President Clinton nominated him as an Associate
Justice of the Supreme Court, and he took his seat August 3, 1994.
In the case of Kelo V. New London, here is how they voted:
STEVENS, J., delivered the opinion of the Court, in which KENNEDY, SOUTER, GINSBURG, and BREYER, JJ., joined. KENNEDY, J., filed a concurring opinion. O’CONNOR, J., filed a dissenting opinion, in which REHNQUIST, C. J., and SCALIA and THOMAS, JJ., joined. THOMAS, J., filed a dissenting opinion.
http://a257.g.akamaitech.net/7/257/2422/23jun20051201/www.supremecourtus.gov/opinions/04pdf/04-108.pdfSo as you can see, of the 5 who concurred, only two were appointed by democratic presidents. Why only 2? because we only have 2 justices who were appointed by democratic presidents.