How same-sex marriage gained bipartisan support – a decadeslong process has brought it close to being written into federal law

U.S. Sen. Lisa Murkowski of Alaska is one of the 12 Republican lawmakers who voted to advance the same-sex marriage bill on Nov. 16, 2022. Anna Moneymaker/Getty Images^[10]

What makes opinions change?

Seventy-one percent of Americans say they support legal same-sex marriage, according to a July 2022 Gallup poll^[11]. In 1996, when Gallup first polled about same-sex marriage, 27% supported legalization of same-sex marriage.

This shift in public opinion has happened despite increasing polarization in the U.S. about gun control, racial justice^[12] and climate change.

What becomes, remains or ceases to be a divisive political issue in the U.S. over time depends on many factors. Changes to laws, shifting cultural norms and technological progress can all shape political controversies.

My research, for example, explores^[13] how Mormons in Utah territory – what would later become Utah state – were denied statehood by Congress until they gave up their religious belief in polygamy. Polygamy was outlawed under U.S. law, and known polygamists were excluded from voting and holding office. In the 1880s, an estimated 20% to 30%^[14] of Mormons practiced polygamy. Yet, political pressure led the Mormon Church president in 1890 to announce^[15] that polygamy would no longer be sanctioned.

In 2011, 86% of Mormon adults reported that they consider polygamy morally wrong^[16], nearly in line with general public opinion^[17].

Many political leaders, both on the left and right, were also largely hostile to same-sex marriage until the early 2010s.^[18]

A rising controversy

In 1993, the Hawaii Supreme Court ruled that the state must have a compelling reason to ban same-sex marriage^[19], after a gay male couple and two lesbian couples filed a suit^[20] that a state ban on same-sex marriage violated their privacy and equal protection rights.

Concern among conservatives that this legal reasoning would lead the Supreme Court to acknowledge a right to same-sex marriage led to a Republican Senator and Congressman^[21] introducing the Defense of Marriage Act^[22].

President Bill Clinton signed the bill in 1996 after 342 – or 78% – of House members and 85 senators^[23] voted for it. Polling at the time showed support among the general population for same-sex marriage was 27% overall, including just 33% among Democrats^[24].

Seven years later, in 2003, the Massachusetts Supreme Court struck down a state ban on same-sex marriage^[25]. With a strong majority nationally of Republicans and independents opposed to same-sex marriage^[26], former President George W. Bush used conservative reactions to that decision to encourage voter turnout in 2004. Bush’s campaign highlighted state amendments to ban same-sex marriage^[27], all of which easily passed.

Although voters prioritized other issues^[28] in the 2004 elections, the opposition to same-sex marriage helped Bush win reelection^[29], while Republicans picked up seats in both the House and Senate.

A political change

The legal and political landscape on same-sex marriage became much more liberal^[30] in the years following 2004.

In 2008,^[31] state courts in California and Connecticut struck down^[32] bans on same-sex marriage. Vermont became^[33] the first state in 2009 to pass legislation and legalize same-sex marriage.

A major national shift occurred in 2012 when then-Vice President Joe Biden^[34] and President Barack Obama openly supported same-sex marriage. This was a major change for both men. Biden had voted in favor of the Defense of Marriage Act^[35]in 1996. Obama publicly supported^[36] marriage as being between a man and a woman in his 2004 senatorial campaign.

In 2015, the Supreme Court struck down^[37] all national and state restrictions on same-sex marriage, making same-sex marriage the law of the land.

Rainbow-colored lights shine on the White House after the Supreme Court ruled in favor of same-sex marriage in June 2015. Mark Wilson/Getty Images^[38]

The Trump effect

The lack of attention Trump paid to same-sex marriage is one factor that contributed to it becoming a less divisive issue. While Trump’s actual record on LBGTQ rights^[39] generally aligns with conservative Christian values, Trump had said in 2016 that he was “fine” with legalizing same-sex marriage^[40].

Still, despite the legality of same-sex marriage, many conservative Midwestern and Southern states deny other legal protections^[41] to LBGTQ persons. Twenty-nine states still allow licensed professionals to conduct youth gay-conversion therapy, a discredited process to convert LGBTQ people into no longer being queer^[42].

More than 20 states allow discrimination in both housing^[43] and public accommodations based on sexual orientation.

A woman participates in a protest in Washington after the Supreme Court’s ruling on same-sex marriage in 2015. Drew Angerer/Getty Images^[44]

Respect for marriage

Sens. Mitt Romney of Utah, Susan Collins of Maine and Lisa Murkowski, representing Alaska, are among the 12 moderate Republican politicians^[45] who voted to advance the same-sex marriage bill.

“I have long supported marriage equality and believe all lawful marriages deserve respect,” Murkowski said in a statement on Nov. 16, 2022. “All Americans deserve dignity, respect and equal protection under the law.”

Some Republican leaders, though, have grown bolder ^[46]in their opposition to same-sex marriage since the Supreme Court overturned the constitutional right to abortion in the Dobbs v. Jackson Women’s Health Organization decision.

These Republicans have said that codifying federal law same-sex marriage is not necessary^[47] since they don’t believe the Supreme Court is likely to overturn federal protections for same-sex marriage.

Democrats first moved to protect same-sex marriage in federal law because Supreme Court Justice Clarence Thomas wrote in a concurring opinion in the Dobbs case that the court should reconsider,^[48] “all of this Court’s substantive due process precedents, including Griswold, Lawrence, and Obergefell,” the latter being the case that legalized same-sex marriage.

But despite public opinion polls showing that most people favor legalizing same-sex marriage – including nearly half^[49] of Republicans – the issue could still be a liability for Republican politicians.

Should the Senate approve the bill – it is to hold a final vote by the end of November 2022 – Republicans will then have to answer to their core conservative constituents who largely oppose the practice. This could mean^[50] that Senate Republicans may have to consider splitting from their own base, or stepping away from moderate voters.

This is an updated version of an article originally published on Aug. 2, 2022^[51].

Authors: Tim Lindberg, Assistant professor, political science , University of Minnesota

Read more https://theconversation.com/how-same-sex-marriage-gained-bipartisan-support-a-decadeslong-process-has-brought-it-close-to-being-written-into-federal-law-194879

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