The biggest open secret in the landmark trial over same-sex marriage being heard in San Francisco is that the federal judge who will decide the case, Chief U.S. District Judge Vaughn Walker, is himself gay. Many gay politicians in San Francisco and lawyers who have had dealings with Walker say the 65-year-old jurist, appointed to the bench by President George H.W. Bush in 1989, has never taken pains to disguise – or advertise – his orientation.

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