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WASHINGTON (AP) — President Joe Biden signed gay marriage legislation into law Tuesday before a crowd of thousands, a ceremony that reflected growing acceptance of same-sex unions.

“This law and the love it defends strike a blow against hate in all its forms,” Biden said on the South Lawn of the White House. “And that’s why this law matters to every single American.”

Lawmakers from both parties were there, as well as first lady Jill Biden and Vice President Kamala Harris and her husband, Doug Emhoff. Singers Sam Smith and Cyndi Lauper performed.

“For once, our families, mine and a lot of my friends — and people you know, sometimes your neighbors — we can rest easy tonight, because our families are validated,” Lauper said at the White House briefing room before the ceremony.

‘The antidote to hate is love’

Senate Majority Leader Chuck Schumer, D-N.Y., wore the same purple tie to the ceremony that he wore to his daughter’s wedding. His daughter and her wife are expecting their first child in the spring.

“Thanks to the dogged work of many of my colleagues, my grandchild will live in a world that will respect and honor their mothers’ marriage,” Schumer said on the Senate floor in the morning.

The triumphant mood played out against the backdrop of a right-wing backlash over gender issues, which has alarmed gay and transgender people and their advocates. Biden criticized the “callous, cynical laws introduced in the states targeting transgender children, terrifying families and criminalizing doctors who give children the care they need.”

“Racism, antisemitism, homophobia, transphobia, they’re all connected,” Biden said. “But the antidote to hate is love.”

Among the attendees were the owner of Club Q, a gay nightclub in Colorado where five people were killed in a shooting last month, and two survivors of the attack. The suspect has been charged with hate crimes.

Plaintiffs from lawsuits that originally helped secure the nationwide right to gay marriage were also there.

“It’s not lost on me that our struggle for freedom hasn’t been achieved,” said Kelley Robinson, president of the Human Rights Campaign. “But this is a huge step forward, and we have to celebrate the victories we achieve and use that to fuel the future of the fight.”

Robinson attended the ceremony with her wife and 1-year-old child.

“Our kids are watching this moment,” she said. “It’s very special to have them here and show them that we’re on the right side of history.”

Law safeguards same-sex, interracial marriages

The new law is intended to safeguard gay marriages if the U.S. Supreme Court ever reverses Obergefell v. Hodges, its 2015 decision legalizing same-sex unions nationwide. The new law also protects interracial marriages. In 1967, the Supreme Court in Loving v. Virginia struck down laws in 16 states barring interracial marriage.

The signing marks the culmination of a monthslong bipartisan effort sparked by the Supreme Court’s decision in June to overturn Roe v. Wade, the 1973 ruling that made abortion available across the country.

Singer Cyndi Lauper arrives to perform
Singer Cyndi Lauper arrives to perform before President Joe Biden speaks during a bill signing ceremony for the Respect for Marriage Act, Tuesday, Dec. 13, 2022, on the South Lawn of the White House in Washington. (AP Photo/Andrew Harnik)

In a concurring opinion in the case that overturned Roe, Justice Clarence Thomas suggested revisiting other decisions, including the legalization of gay marriage, generating fear that more civil rights could be imperiled by the court’s conservative majority. Thomas did not include interracial marriage with other cases he said should be reconsidered.

Lawmakers crafted a compromise that was intended to assuage conservative concerns about religious liberty, such as ensuring churches could still refuse to perform gay marriages.

In addition, states will not be required to issue marriage licenses to same-sex couples. But they will be required to recognize marriages conducted elsewhere in the country.

A majority of Republicans in Congress still voted against the legislation. However, enough supported it to sidestep a filibuster in the Senate and ensure its passage.

71% surveyed say same-sex marriage should be recognized

Tuesday’s ceremony marks another chapter in Biden’s legacy on gay rights.

He memorably — and unexpectedly — endorsed same-sex unions in a television interview in 2012, when he was vice president. Days later, President Barack Obama announced that he also supported gay marriage.

A clip of the interview was played at the ceremony.

“What this is all about is a simple proposition: Who do you love?” Biden said on NBC’s “Meet the Press” a decade ago. “Who do you love and will you be loyal to the person you love? And that is what people are finding out is what all marriages at their root are about.”

A Gallup poll showed only 27% of U.S. adults supported same-sex unions in 1996, when President Bill Clinton signed the Defense of Marriage Act, which said the federal government would only recognize heterosexual marriages. Biden voted for the legislation.

By the time of Biden’s 2012 interview, gay marriage remained controversial, but support had expanded to roughly half of U.S. adults, according to Gallup. Earlier this year, 71% said same-sex unions should be recognized by law.

Biden has pushed to expand LGBT rights since taking office. He reversed President Donald Trump’s efforts to strip transgender people of anti-discrimination protections. His administration includes the first openly gay Cabinet member, Transportation Secretary Pete Buttigieg, and the first transgender person to receive Senate confirmation, Assistant Secretary for Health Rachel Levine.