Evan Wolfson emails to note how so many judges who have backed simple civil equality for all citizens have appointed by Republicans:
Massachusetts (Goodridge, 2003) Margaret Marshall, appointed by Chief Justice Gov. Weld (R) in 1996, elevated to Chief by Gov. Cellucci (R);
in 1999 California (In re Marriage Cases, 2008) Ronald George, Chief Justice appointed by Gov. Wilson (R) in 1991, elevated to Chief by Gov. Wilson (R);
in 1996 Connecticut (Kerrigan, 2008) Richard Palmer, Associate Justice appointed by Gov. Weicker (Ind.); in 1993 -- Note that Weicker was a Republican during his time in the House and Senate. He won the governorship as an independent.
And today, in Iowa (Varnum, 2009) Mark Cady, Associate Justice, appointed by Gov. Branstad (R) in 1998.