Attorney David Boies (2nd L) addresses a news conference announcing a federal lawsuit to halt California's same-sex marriage ban, in Los Angeles May 27, 2009. Ted Olson and Boies, who squared off in the legal case that determined the 2000 U.S. presidential election, teamed up to challenge California's gay marriage ban in a move that if successful would allow same-sex couples to wed anywhere in the United States. The lawsuit, filed on behalf of two same-sex California couples barred from marrying under the voter-approved measure, Proposition 8 (Prop 8), puts them at odds with gay rights advocates who see a federal court challenge as risky. Also present were Chad Griffin (L), board president of American Foundation for Equal Rights, plaintiffs Jeffrey Zarrillo (2nd R) and Paul Katami (R). REUTERS/ Fred Prouser
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