This artist rendering shows attorney Charles J. Cooper, right, addressing the Supreme Court in Washington, Tuesday, March 26, 2013, as the court heard arguments on California's ban on same-sex marriage. Justices, from left are, Sonia Sotomayor, Stephen Breyer, Clarence Thomas, Antonin Scalia, Chief Justice John Roberts, and Justices Anthony Kennedy, Ruth Bader Ginsburg, Samuel Alito and Elena Kagan. (AP Photo/Dana Verkouteren)

Photo by: Dana Verkouteren

This artist rendering shows attorney Charles J. Cooper, right, addressing the Supreme Court in Washington, Tuesday, March 26, 2013, as the court heard arguments on California's ban on same-sex marriage. Justices, from left are, Sonia Sotomayor, Stephen Breyer, Clarence Thomas, Antonin Scalia, Chief Justice John Roberts, and Justices Anthony Kennedy, Ruth Bader Ginsburg, Samuel Alito and Elena Kagan. (AP Photo/Dana Verkouteren)