Over two emotionally draining hours Thursday, Obama and Vice President
He and Biden then placed a bouquet of 49 white roses — one for each victim — amid the other flowers, photos and balloons at a makeshift memorial.
"Their grief is beyond description," Obama told reporters after meeting with the families. Then, appearing to break away from his prepared text, he renewed a call for the country to change the debate over guns.
Fathers and mothers, sisters and brothers had shared their loved ones' stories, Obama said. But they also asked why such tragedies kept happening and pleaded with him to do more.
"They don't care about the politics. Neither do I," Obama said.
"This debate needs to change. It's outgrown the old political stalemates," he said.
In some cases where he has comforted families, a gunman acted out of ideological fervor, in others, personal demons, he said, but "the instruments of death were so similar."
"Those who defend the easy accessibility of assault weapons should meet these families and explain why that makes sense," he said.
Obama also implicitly challenged his potential Republican successor without naming him, saying the idea that fewer lives would have been lost had more patrons at the Pulse nightclub been armed "defies common sense."
The Orlando attack stands distinct in the president's experience for its scope and scale, but also for the complex web of issues it brought to the forefront — fear of terrorism and radicalism, worries about political fallout and the vulnerability of targeted communities.
The White House had insisted at first that Obama was traveling to Orlando mindful of his role not as a political figure but as a "symbol of the country."
But, as one aide noted, "there's no playbook" for these types of visits.
Unlike some of the president's previous trips for memorial services after mass shootings, this one was decidedly low-key: no address to a large crowd, but simply what White House officials had said would be "a few personal reflections" to the media after spending time with mourners.
The White House worked closely with Orlando Mayor
While the shooting had quickly become fodder for the presidential campaign, Obama's visit had a bipartisan note. Sen. Marco Rubio (R-Fla.) joined Obama aboard Air Force One to travel to Orlando. And among those greeting Obama upon arrival was Republican Gov.
For Obama, the gathering reprised a memorial like the one in Newtown, Conn., in 2012. Obama met with almost every immediate family member who lost a child at Sandy Hook Elementary School in that massacre, and the experience fueled his ultimately doomed effort to pass gun-control legislation in Congress in the months afterward.
Although Obama sees Orlando as a singular moment, he approached it with the heavy baggage of the mass shootings that have come before it during his presidency.
The fact that he was speaking to and about lesbian, gay, bisexual and transgender people and immigrants, two communities who may feel their equality and liberty are under fire right now, added to the urgency of his visit.
Aides to Obama said it was important to him to get to Florida quickly. In fact, his arrival on Thursday afternoon was a few days earlier than the full week he typically waits before visiting the scene of a tragedy.
"These families could be our families. In fact, they are our family, they're part of the American family," he said.
Some LGBT leaders were angered this week that Gov. Scott went two days without acknowledging the particular pain of the gay community in the wake of the killings.
In a Tweet on Tuesday, Scott used the term "LGBT.
Pulse, a popular gathering place for lesbian, gay, bisexual and transgender people and for Latinos, was a "sanctuary," Obama noted, one that was "violated in the worst way imaginable." It was an act of terror, Obama said, but also an act of hate.
The 29-year-old gunman, a Queens native named Omar Mateen, had spoken in the past of his hatred for gay people, racial minorities and Jews. In the midst of the massacre at the nightclub he called a 911 operator and announced his loyalty to Islamic State, though investigators are still probing whether he'd had contact with the extremist group.
Whatever his motivations, Obama said, "hatred towards people because of sexual orientation, regardless of where it comes from, is a betrayal of what's best in us."
"If there was ever a moment for all of us to reflect and reaffirm our most basic beliefs that everybody counts and everybody has dignity, now is the time."
Still, Obama said he found solace in the response of the Orlando community and in the lives cut too short.
"Out of this darkest of moments, that gives us hope — seeing people reflect, seeing people's best instincts come out, maybe in some cases, minds and hearts change," he said.
Times staff writer Mike Memoli in Washington contributed to this report.
Follow @cparsons for news about the White House.