| FILE - In this Sept. 6, 2011 file photo, opponents of gay marriage outside a courthouse in San Francisco where the California Supreme Court was hearing arguments on California's ban on same-sex marriage. On Tuesday, the US Supreme Court will begin hearing two days of cases involving gay marriage. | 
     WASHINGTON     
(AP) -- They mostly kept their distance, these supporters and opponents 
of gay marriage, as they massed Tuesday in front of the Supreme Court to
 proclaim with signs and slogans their conflicting views about the 
cutting-edge question before the justices.
People
 who favor legalizing same-sex marriage carried pictures of gay weddings
 and families and held signs that read "marriage is a constitutional 
right." They waved American and rainbow flags, and one man in devil 
horns danced in pink heels and a rainbow tutu.
Opponents,
 meanwhile, marched down a roadway in front of the court, hoisting 
placards including "Every child deserves a mom & dad" and "Vote for 
holy matrimony."
By the time the court began 
its session, which on Tuesday dealt with California's ban on same-sex 
marriage, the sidewalk outside was packed. Supporters spilled over to 
the other side of the roadway. "Gay, straight, black, white, marriage is
 a civil right," the crowd chanted at one point, followed by "we honor 
this moment with love."
Many supporters of gay
 marriage came with homemade signs including ones that read "a more 
perfect union," "love is love," and "`I do!' want 2 B (equals)" Some 
signs had pictures of gay couples. "Together 34 years," read one, 
"married with pride," said another.
Gahan 
Kelley and Bonnie Nemeth, both 69, of Richmond, Va., had matching signs 
with their California marriage license on one side and a picture of 
their wedding ceremony on the other. The couple married in California 
during the 142 days when it was legal.
"This decision can change our lives tremendously," said Kelley of the Supreme Court cases.
Nemeth said she was hopeful that the court would support gay marriage.
"I really think we're going to win," she said.
Another
 couple, Stacey Parker, 37, and Debbie Sentner, 43, drove from Toledo, 
Ohio, to Washington to demonstrate. The pair married in Massachusetts in
 2009, but their home state doesn't recognize their marriage. On Tuesday
 they carried signs that said "Tired of being a second class citizen" 
and "we the people means everyone."
"To us we 
feel married but we don't really feel complete until we can actually get
 all the rights and recognition that a lot of people take for granted," 
Parker said.
While many people were at the 
court to demonstrate, others stood in line to get inside the court to 
hear the arguments. Actor-director Rob Reiner, who helped lead the fight
 against California's Proposition 8, which barred gay couples from 
marrying in the state, was at the head of the line. Some people had 
waited since last Thursday - even through light snow - for coveted seats
 to hear the argument.
Supporters of gay 
marriage were initially the majority of the crowd standing outside the 
court, but a smaller group stood holding signs backing traditional 
marriage. Mike Krzywonos, 57, of Pawtucket, R.I., wore a button that 
read "marriage 1 man + 1 woman." Krzywonos, a retired metal worker, said
 his group is the "silent majority."
"The 
whole country does not want this," he said as helped hold a sign that 
read, "just because you don't get it does not give you the right to 
change it."
The crowd of opponents swelled 
just as the court began considering the case not long after 10 a.m. EDT. 
Opponents staged a march down the street in front of the court as 
supporters stood on both sides of the roadway. Some conversations 
between the two sides got heated, even with police escorting the group. 
Austin Ruse, 56, was one of the people who exchanged words with the 
other side, asking two women supporting same-sex marriage whether a man 
should be allowed to marry his adult son.
"If anyone can get married then marriage has no meaning," Ruse said later.
Christine
 Clark, 47, of Pittsfield, Pa., was participating in the march with her 
teenage children and their cousin. She said she knows and loves gay 
people but does not believe in gay marriage.
"We're not hating," said her daughter, Lydia Clark, 13.
Outside
 the court after the argument had concluded, supporters of same-sex 
marriage chanted, "Equal justice under the law," the motto inscribed on 
the face of the marble court building, and cheered as their attorneys, 
David Boies and former solicitor general Ted Olson, emerged from the 
court.
Boies called the arguments a "very 
thoughtful hearing." Asked if the court was ready to make a sweeping 
ruling, Olson said he had "no idea."
But Olson said public support is in favor of same-sex marriage.
"We
 are confident where the American people are going with this," he said. 
"We don't know for sure what the United States Supreme Court is going to
 do, but we're very, very gratified that they listened, they heard, they
 asked hard questions, and there's no denying where the right is and we 
hope that the Supreme Court will come out in that way when they make 
this decision in June."
Andrew Pugno, an 
attorney for ProtectMarriage.com, the group that defended Proposition 8 
in court, said his side was able to say everything they wanted to during
 arguments and would look forward to the court's decision.
"I think that we'll see a very reasoned decision from this court," he said.
The
 court will hear one more day of arguments on the issue of gay marriage.
 On Wednesday the court will consider a case involving the federal 
Defense of Marriage Act, which defines marriage as between a man and a 
woman.