Transgender reality television star Caitlyn Jenner, who supported President Trump and attended his inauguration, slammed the president for his decision to withdraw Obama-era protections for transgender students and called on him to keep his promise to the LGBT community.

The Trump administration on Wednesday officially rolled back protections for transgender students laid out by the Obama administration that directed schools to allow transgender students to use bathrooms and other facilities that correspond to their gender identities.

Jenner posted a video to Twitter criticizing the president, as well as Attorney General Jeff SessionsJefferson (Jeff) Beauregard SessionsOn the Trail: Senate GOP hopefuls tie themselves to Trump Trump looms as flashpoint in Alabama Senate battle Trump tweets test Attorney General Barr MORE.

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"I have a message for the trans kids of America: You are winning. It may not feel like it today or every day, but you're winning. Very soon we will win full freedom nationwide," Jenner said. "Now I have a message for the bullies: You're sick ... because you're weak and pick on kids or pick on women or anyone else you think is vulnerable.

"Even becoming the attorney general isn't enough to cure some people of their insecurities," Jenner continued. "As proof the Supreme Court will soon hear a very important Title IX case, thanks to the courage of a very brave young man, Gavin Grimm. Mr. President, we'll see you in court."

Grimm, a transgender student from Virginia, is set to go to the Supreme Court over his school prohibiting him from using the boys bathroom. 

Jenner went on to address the president directly in her video.

"Finally, I have a message for President Trump from, well, one Republican to another. This is a disaster. And you can still fix it. You made a promise to protect the LGBTQ community. Call me," she said. 

When reached by The Hill earlier Thursday, a Jenner spokesperson said any comment on the matter will be made via social media.

Jenner, an Olympic gold medalist formerly known as Bruce, came out as transgender in 2015 under the "Keeping Up With the Kardashians" spotlight and her own show, "I Am Cait."