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UPDATE: Caitlyn Jenner, a Republican who Trump said could use any restroom she wanted at Trump Tower, just called the President's decision a "disaster."

Well @realDonaldTrump, from one Republican to another, this is a disaster. You made a promise to protect the LGBTQ community. Call me. pic.twitter.com/XwYe0LNUOq @Caitlyn_Jenner

President Donald Trump has rolled back the progress former President Barack Obama made in enforcing bathroom protection for transgender students in schools, and many in Hollywood aren't happy.

On Wednesday, the Trump administration rescinded Obama's initiative for public school guidance on allowing transgender students to use the bathrooms of their choice based on their chosen gender identity.

Trump revoked the guidelines for public schools despite a federal judge putting the initiative on hold to determine where state rights ended and federal guidelines began.

Actors, actresses, comedians and singers including Brie Larson, Katy Perry and Mark Ruffalo are speaking out against the decision on Twitter. Read their reactions below.

.@Lavernecox puts it simply + perfectly: Trans folks are 'more than the sum of our parts,' to focus on anatomy is 'objectifying' #hardball pic.twitter.com/gTbegzgBYx @lisathefeierman

To the LGBTQ community, I'm sorry for the message that was sent today. They don't speak for all of us. We love you. @ChrisEvans

I was a trans student. I know how vital it is to feel safe, welcomed & affirmed. Equal access enabled me to attend, stay & thrive in school. @janetmock

Just seeing the news about removing laws protecting trans people. This isn't about politics. It's about human rights, and it's not okay. @TheEllenShow

This is disgusting. This is unacceptable. I #StandWithGavin and every Trans person who deserve nothing less than protection and equality. https://t.co/IK5TO8nWQ8 @brielarson

We need to protect trans youth and stand up against this cruelty that hurts our kids. Support @Translifeline @EllenPage

What an asshole! Trump administration withdraws federal protections on transgender bathrooms in schools @CNNPolitics https://t.co/HuazYmhe2a @LanceBass

Standing with my Trans fam. This is not ok. This is an attack on all of us. I love you. https://t.co/oT1quwHJlI @wcruz73

To my trans community, stay hopeful and stand united! #ProtectTransKids 💜💜💜 pic.twitter.com/HWRsN5hwbm @JazzJennings__

I'm sorry for all #trans kids who face ridicule and safety concerns today as a result of the shameful reversal of protections at school. @darrenhayes

This is what fascism looks like. https://t.co/XrPPTMiEOc @ChrisWarcraft

"@POTUS" you sure you're the best person to legislate the appropriate place for people to pee? @DannyZuker

Trans kids: it gets better. I promise it will--because there are lots of allies out here who will be fighting on your behalf. @jodipicoult

Here are the Trump administration letters formally revoking federal protections for transgender students pic.twitter.com/yS28eEhLtx @BraddJaffy

See more: Why Keith Olbermann Thinks Trump Supporters Are Super High on Drugs (Video)

THIS IS EVERYTHING WRONG WITH THIS ADMINISTRATION. @POTUS ACTS OUT OF FEAR AND HATRED OF EVERYTHING HE DOESN'T UNDERSTAND. #RESIST https://t.co/SG9UgSH7R1 @emmyrossum

We are all humans having a human experience birthed the same way!to the communities affected,I stand with you. Always and forever @1capplegate

Ugly! Trump administration set to rescind protections for transgender students ➡️ by @aterkel https://t.co/678NPUt4Yh via @HuffPostPol @MarkRuffalo

There's no reason 2 roll back rights for trans citizens or anyone else. What jobs does that create? How is that keeping the US safe? #Resist @billyeichner

Do not sleep on Transgender rights rollbacks, especially if you are LGBQ. One of the most vulnerable populations NEEDS SUPPORT. @MaraWilson

#KindnessInAction means showing up for LGBTQ students. You have my support, always. https://t.co/T3vTSfG7U3 @GLSEN @ninadobrev

Trans friend, if you are struggling tonight, please reach out to @TrevorProject and @Translifeline. Equality for all! #ISTANDWITHGAVIN pic.twitter.com/bgipj0rmqg @katyperry

I am obviously disappointed in the @POTUS decision to send the #transgender bathroom issue to the states to decide. #sisterlove @jackieevancho