Following Elon Musk’s appointment to Twitter’s board of directors after he became the social media platform’s single largest shareholder, U.S. Rep. Jim Banks, R-Ind., sent the billionaire entrepreneur a letter asking him to revise the company’s policy so “lawful” and “factually accurate” speech will no longer be censored on the platform.

Musk now owns roughly 73.5 million Twitter shares, which are collectively worth an estimated $2.89 billion. That amounts to roughly a 9.2% stake in Twitter.

The purchase gave Musk a larger share of the company than Twitter co-founder Jack Dorsey, who only owns a 2.25% stake.

“I urge you to advocate for revising Twitter’s content policy to allow all speech that is both lawful and factually accurate,” the letter to Musk reads. “While this change is simple, it would significantly alter Twitter’s current censorship practices.”

Banks goes on to accuse Twitter of censoring “an alarming number of true statements,” including what Banks deemed was a factually correct tweet he made recently about transgender Assistant Secretary of Health Rachel Levine. Banks was reportedly suspended from the platform for “misgendering” Levine.

Banks also cited recent censorship of criticisms about the University of Pennsylvania’s transgender swimmer Lia Thomas, who won the NCAA Women’s Division I title in the 500-yard freestyle.

In his letter, the Indiana congressman also charged Twitter’s content policy with “explicitly” banning truthful speech.

“In 2021, Twitter changed its terms of service to prohibit all ‘false or misleading claims that people who have received the vaccine can spread or shed the virus.’ Of course, the COVID vaccine does not prevent the transmission of the virus,” Banks wrote.

Banks alluded to Twitter’s censorship of the Hunter Biden laptop story as well, which was recently confirmed to have been accurate, arguing Twitter’s actions censoring the story “actively helped shield” then-candidate Joe Biden during the run-up to the 2020 election, ultimately affecting its outcome.

He called Twitter’s actions toward the story about the president’s son “a dangerous precedent,” and said what makes Twitter’s actions so alarming “is the obvious partisan slant.”

Banks pointed to a study from Columbia University researchers, which reportedly indicated Twitter suspends conservative users at a rate of 21-to-1 compared to liberal users.

He also pointed to another study from the Media Research Center’s Free Speech America, which indicated Republican members of Congress were censored at a rate of 53-to-1 compared to Democratic members of Congress.

“Prohibiting true statements is systematic lying and Twitter’s dishonesty has seriously damaged the company’s image. By committing to tolerating factually true statements, Twitter could greatly improve its public standing,” Banks concludes in his letter. “Allowing all truthful and lawful content would prevent much of Twitter’s past politicized censorship, while maintaining Twitter’s ability to prevent harassment, bullying, threats of violence, and even ‘disinformation.’”

Banks noted Musk’s appreciation for free speech was “a glimmer of hope” for the future of Big Tech companies like Twitter.