The American Federation of Teachers, one of America's largest teachers unions, has a legal defense fund "ready to go" for those sued over teachings labeled as "critical race theory."

The organization's president, Randi Weingarten, said the union "will defend any member who gets in trouble for teaching honest history," in prepared remarks for a virtual address to union members obtained by the Associated Press.

The union added $2.5 million to the existing legal defense fund in preparation to defend teachers punished over teaching about racism and slavery, Weingarten told the Associated Press.

Critical race theory has largely been denounced by some Republicans who argue it is divisive, causing children to feel guilt for being white. However, Weingarten said the theory is mostly taught in universities and not within elementary, middle and high schools. She asserts conservatives are referring to the theory to limit teaching accurate history in regard to race and discrimination in schools.

"Teaching the truth is not radical or wrong. Distorting history and threatening educators for teaching the truth is what is truly radical and wrong," Weingarten said in her prepared speech.

For more reporting from the Associated Press, see below:

The American Federation of Teachers has a legal defense fund "ready to go" for teachers punished over teachings labeled as "critical race theory," said the organization's president Randi Weingarten. In this photo, Weingarten speaks during a rally in front of the U.S. Supreme Court June 9 in Washington, D.C. Alex Wong/Getty Images

The American Federation of Teachers' move is a measure that's intended to counter the wave of states seeking to limit classroom discussion on race and discrimination.

Weingarten said her union is preparing litigation in her prepared remarks. She promised to fight "culture warriors" who attempt to limit lessons on racism.

At least six states have passed new laws limiting how race can be taught in the classroom, and similar proposals are being considered in at least a dozen others. Many of the bills are intended to bar the teaching of critical race theory—an academic framework that examines history through the lens of racism. It centers on the idea that racism is systemic in the nation's institutions and that they function to maintain the dominance of white people in society.

Last month, Texas Gov. Greg Abbott signed a law forbidding schools from teaching that people "should feel discomfort, guilt, anguish or any other form of psychological distress" because of their race or sex. It adds that slavery and racism can only be taught as a deviation from the nation's "authentic founding principles" of liberty and equality.

Bills in some other states threaten to fine individual teachers who violate the rules or reduce state funding to their schools.

The funding will be used to defend teachers who are disciplined for teaching about slavery and racism, Weingarten said. The union is also considering filing lawsuits to get clarification about new state laws limiting how racism can be discussed in schools, she said.

"We're looking at these laws to see if courts will give some clarification in advance," Weingarten said. "It just looks like it's an attempt to erase so much of the history of the United States."

Once an obscure academic idea, critical race theory has become a political rallying cry for Republicans who argue that it sows division.

Weingarten said conservatives are invoking the theory to bully teachers. Some of the state laws are so expansive, she said, that they appear to prevent any accurate lesson on the Civil War, slavery or its abolition.

"Teaching America's history requires considering all the facts available to us—including those that are uncomfortable—like the history of enslavement and discrimination toward people of color and people perceived as different," she wrote in her comments. "Years ago, the country unified against Holocaust deniers. We must unite again to address racism and its long-term effects."

The nation's other major teachers union, the National Education Association, recently issued its own call for an honest teaching of the nation's racial histories. At the union's national meeting last week, president Becky Pringle urged teachers to prepare students for a society that "has wrestled with the sins of its past" and learned from them.

"If this grand experiment in democracy is to succeed, if the inhabitants of our nation are to prosper, we must continuously do the work to challenge ourselves and others to dismantle the racist interconnected systems, and the economic injustices that have perpetuated systemic inequities," Pringle said.

Weingarten's pledge was included as part of a broader call for improved civics education. She called for improved lessons on how to identify disinformation and on current events such as the Jan. 6 insurrection at the U.S. Capitol. To help, the union is recruiting 20 teachers in three school districts to produce new classroom materials and share them with other teachers across the country.

Much of her speech is focused on the coming school year and beyond, as the nation starts to recover from the pandemic. But she also raised concerns about the rapidly spreading Delta variant of the coronavirus and its effect on schooling the fall. Weingarten said schools "can reopen this fall" for full in-person learning, but she cautioned that "there are still risks."

The union is seeking updated school guidance from the Centers for Disease Control and Prevention, asking whether students under 12 should wear masks and whether three feet of physical distance is enough. The agency's most recent guidance recommending three feet between students was issued before the Delta variant started spreading in the U.S.

"We need this science-grounded guidance to clear up ambiguities, and that reflect the realities of school environments," Weingarten said in her comments.