Trial on California’s Proposition 8 shapes up as key legal battle for same sex marriage

The first federal trial over same-sex marriage ends its first week today in a San Francisco courtroom. The California Supreme Court legalized gay marriage in 2008, but months later voters passed Proposition 8 limiting marriage to a man and a woman. Two same sex couples filed a lawsuit, "Perry versus Schwarzenegger," in a federal district court, arguing that Prop 8 violates constitutional guarantees of equal protection and due process. Christopher Martinez reports from San Francisco.