A same-sex marriage proponent holds a pride flag while standing in front of the U.S. Supreme Court on November 30, 2012.
Thursday is the deadline for friend-of-the-court or amicus briefs to be filed in the U.S. Supreme Court case challenging Proposition 8, California's voter-approved ban on same-sex marriage. Now, one last-minute brief from prominent Republicans opposing Prop. 8 has legal circles buzzing. Reporter: Scott Shafer