PHOENIX — Arizona lawmakers were poised Wednesday to begin the process of repealing a 1991 sex education law that forbids instruction that "promotes a homosexual life-style."

The planned action in the state House comes a day after Republican Attorney General Mark Brnovich declined to join in defending a lawsuit filed last month by LGBTQ groups against the state's Board of Education and state's top schools official, Democratic Superintendent of Public Instruction Kathy Hoffman.

The 1991 law also prohibits HIV and AIDS instruction that "portrays homosexuality as a positive alternative lifestyle" or "suggests that some methods of sex are safe methods of homosexual sex."

The lawsuit says the law stigmatizes lesbian, gay, bisexual and transgender students and is discriminatory.

Republican state Rep. T.J. Shope plans to carry the repeal and calls the 1991 law "antiquated." He said Republicans who hold majorities in both chambers of the Legislature were split, with some critical of Brnovich's decision and others believing as he did that the law was outdated.

Shope will use an existing bill as a vehicle for the repeal, erasing the current language and replacing it with a full repeal of the 1991 law.

Hoffman had called for the repeal of the law in February, before the lawsuit was filed. She had indicated she had no plans to mount a defense, and Brnovich's decision left it up to the Legislature or the Board of Education to defend it.

"For nearly three decades the effects of these policies have harmed Arizona's students and families," she said in a statement Wednesday. "As I have previously stated, I believe this law is indefensible and its repeal is long overdue. I urge the legislature to take immediate action and remove this law from statute."

The lawsuit, filed on behalf of Equality Arizona, alleges the 1991 law constitutes unconstitutional discrimination and restricts educational opportunity for LGBTQ students. It says it enshrines in state law that LGBTQ students can only be discussed in a negative light and communicates to students and teachers "that there is something so undesirable, shameful, or controversial about 'homosexuality' that any positive portrayals of LGBTQ people or same-sex relationships must be explicitly barred."

Arizona is one of seven states with laws prohibiting the promotion of homosexuality. Critics say such laws stigmatize lesbian, gay, bisexual and transgender students and create a state-sanctioned climate of discrimination.

Lambda Legal filed the lawsuit along with the National Center for Lesbian Rights in U.S. District Court in Tucson. Shannon Minter, legal director for the National Center for Lesbian Rights, said repealing the law would end the lawsuit.

"We just realized and recognized that the law was blatantly unconstitutional," Minter said. "And when a similar law was challenged in Utah, the Utah Legislature also took action to repeal it."

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