Silicon Valley once again is speaking out against President Donald Trump, this time about rumors he will end the “Dreamer” program.

President Donald Trump’s latest decision hasn’t even been made public, and already major tech executives are speaking out.

This time, they’re expressing their disapproval of reports that Trump will put an end to the Deferred Action for Childhood Arrivals, an Obama-era program that offers undocumented immigrants who came to the US as children a chance to work and study without fear of deportation. Since its inception in 2012, about 800,000 people have signed up.

But a group of state attorneys general have threatened to challenge DACA if Trump doesn’t rescind it himself by Sept. 5. On Monday evening, the Department of Justice said Attorney General Jeff Sessions would make an announcement on the state of DACA on Tuesday at 8 a.m. PT. (The briefing can be watched here.)

Now, tech industry leaders are joining members of Congress in urging Trump to keep the program in tact.

Tech CEOs have been increasingly flexing their political muscle over the years, speaking out on everything from gay rights to early childhood vaccinations. Since Trump was sworn in as president on Jan. 20, the tech industry has been increasingly speaking out against him.

First, they opposed his controversial travel ban, and again when it was revised. They also rejected Trump’s ban on transgender troops, announced in July. And a number of tech CEOs resigned from presidential advisory councils over Trump’s handling of the rally of white supremacists, klansmen and Nazis in Charlottesville, Va.