The California Supreme Court will issue its same-gender marriage ruling tomorrow at 10am Pacific time. More from the Chronicle:

More than four years after San Francisco defied state marriage laws by allowing nearly 4,000 same-sex couples to wed at City Hall, the state Supreme Court is set to decide Thursday whether gays and lesbians have a constitutional right to marry in California.

But the decision, due at 10 a.m., may not be the last word. Conservative religious organizations have submitted more than 1.1 million signatures for an initiative that would amend the state Constitution to outlaw same-sex marriage. If at least 694,354 signatures are found to be valid, a tally that is due by mid-June, the measure would go before the voters in November and could override a court ruling in favor of same-sex marriage.

Always in Presidential election year..........