President Joe Biden spoke about gun control and "banning books" in his Independence Day message to the National Education Association, the nation's largest teachers union.

Biden called in via video to the NEA's annual summit taking place in Florida, a state that union President Becky Pringle on Monday called "Ground zero for shameful, racist, homophobic, misogynistic, xenophobic rhetoric and dangerous actions."

WATCH LIVE: JOE BIDEN CELEBRATES FOURTH OF JULY WITH NEA, NATION'S LARGEST TEACHERS UNION

"Educators now find themselves in the front lines of gun violence," Biden said, calling on Congress to "pass commonsense gun safety laws to protect our kids and educators."

"Arming teachers is not the answer," he added.

Some of the "commonsense" measures Biden advocated in the speech were outright bans on semi-automatic rifles, which he erroneously referred to as "assault weapons," banning "high-capacity magazines," and enforcing "extensive background checks."

Biden also referenced "banning books" in his speech, saying, "let's stand with teachers and educators against politicians who are trying to score political points by banning books."

While he did not name specific books, Biden's reference is likely to conservatives and parents across the country being concerned with sexually explicit, and sometimes pornographic, materials children have access to in schools.

Biden's message and the NEA summit come in stark contrast to the Moms for Liberty summit that took place over the weekend in Philadelphia, Pennsylvania.

There, parents from across the country attended training sessions and speeches to learn how to obtain more parental oversight over local school boards and teachers who, according to many speaking with the Washington Examiner, try to hide classroom materials from parents. Protesters outside the Moms for Liberty event handed out "banned" books.

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Speaking about the "power of a great educator," Biden referenced the Greek philosopher Plato.

"What the hell did Plato say?" Biden asked before paraphrasing the author of the Republic. "The penalty that people pay for not being involved in politics is being governed by people worse than themselves."