But don't expect the president to use the occasion to flash his rainbow stripes in support of marriage equality.
"I'm not going to make news on that today," Obama said when pressed on his personal views of same-sex marriage during a midday press conference.
The president, who has opposed the unions, told reporters that while New York becoming the six, and largest, state to allow same-sex marriage last week was a "good thing," he believes the issue should be left up to the states.
"I think it's important for us to work through these issues because each community is going to be different, each state is going to be different," he said.
The position -- a new twist for Obama, who appeared to support legalizing the unions in 1996, later opposed them, and recently said his views are "evolving" -- has rankled advocates who say the president is making a calculated political decision with an eye toward 2012.
"The president has staked out a cynical political position aimed at not rocking the boat," said Richard Socarides, who advised President Bill Clinton on gay rights issues. "This states' rights argument is a separate but equal argument. Would the president have thought it right to let the states decide on the issue of interracial marriage, or on whether or not women should be allowed to vote?"
Obama's reluctance to embrace gay marriage, putting him among a minority of Americans in national polls, appears part of a broader effort to avoid alienating voters in battleground states, like Ohio and Nevada, where majorities have traditionally shown less support for the unions than voters overall.
States such as Colorado, Florida, Nevada, Ohio and Virginia, all won by Obama in 2008 and expected to be close contests in 2012, have constitutional amendments banning same-sex marriage that couldn't be overcome by a president's leadership alone.
New Hampshire legislators are expected to vote early next year on whether to repeal the state's same-sex marriage law, while in Minnesota, another battleground, a constitutional amendment banning the unions will appear on the ballot in 2012.
"If Obama were to come out for marriage equality today, nothing could happen tomorrow," said one Democratic strategist close to the administration who spoke on condition of anonymity. "The Defense of Marriage Act still needs to be repealed, and that won't happen soon with a Republican-controlled House in place."
Same-sex marriage also remains comparatively less popular among Hispanic and African-American voters than their White counterparts, a fact which could weigh on Obama's effort to court those constituencies. A recent poll by the Pew Research Center found 59 percent of blacks and 47 percent of Hispanics oppose legalizing gay marriage.
Bottom line, some gay rights advocates speculate, Obama likely believes he has more to lose than gain in coming out in favor of same-sex marriage.
The president has already won the backing of many gay and lesbian donors who have given millions to his campaign. The nation's largest gay and lesbian rights group, the Human Rights Campaign, was among the first to formally endorse Obama for re-election. And, aides say, gay and lesbian Americans are unlikely to find as progressive a president from across the political aisle.
"I would not begrudge a single person who feels strongly about this for being upset with the president about it," White House communications director Dan Pfeiffer said earlier this month of Obama's position on marriage. "'But what I can promise you is, if someone else is president, all the other things I talked about [benefits for gays and lesbians] are all going to go away."