WASHINGTON (WUSA9) -- Kevin Cain a republican was married three years ago in D.C. to Chris Moore a democrat.
The two are hoping the Supreme court sends a signal that same sex marriage should be a constitutional right and not just law in a handful of states and the District of Columbia.
"I'm a little nervous, I hope they do the right thing," Cain said.
The Reverend Anthony Evans fought same sex marriage in DC and lost. He's counting on the Supreme court to stop what some polls say it a growing shift in public opinion toward same sex marriage.
"The church position is clear, marriage only consists of one man and one woman," Reverend Evans said.
Advocates on both sides have been lining up outside the Supreme court for days.
Tomorrow the Justices will hear 60 minutes of oral arguments in a challenge to California's Proposition 8 -- a State constitutional amendment which bans same sex marriage.