“In less than three weeks Musk has gone back on every promise he made to civil-rights leaders and advertisers,” said Jessica Gonzalez, the co-CEO of media advocacy group Free Press, who met with Musk alongside the NAACP, the Anti-Defamation League and other civil rights groups in early November.

Bringing back someone like Trump — who could spin up controversy with a single late night tweet — returns a specific kind of political uncertainty back to the platform. And even some in Trump’s own party aren’t excited about his much-awaited first tweet, if he decides to rejoin.

Some progressive groups said the move raised red flags, given how much power Musk has as the sole owner of Washington’s favorite platform. “A billionaire generally holding that much power and making a comment like that in the 11th hour of what is a highly contentious election is a huge problem,” said Maen Hammad, a campaigns consultant for corporate accountability watchdog group SumOfUs.

Twitter CEO Elon Musk single-handedly led a call on Tuesday with civil rights groups in an effort to assure them that he would curtail hate speech — and stop the spread of misinformation ahead of the midterm elections.

Musk said that Twitter employees responsible for election integrity who had been locked out of their moderation tools during the company’s acquisition will have their access reinstated by the end of the week, three people on the call confirmed.

Musk also said that users banned by the platform — including former President Donald Trump — will remain off the site “for at least a few more weeks.”

On Tuesday, 40 civil society groups wrote an open letter to the CEOs of Twitter’s 20 top advertisers — including Amazon, Apple, Google and Meta — calling on them to stop advertising on Twitter globally if Musk continues to do things that “undermine brand safety and community standards by gutting content moderation.”

Additionally, a dozen high-end brands represented by luxury advertising firm GroupM said they wanted to stop advertising on Twitter if Donald Trump rejoined the platform, GroupM told the Wall Street Journal last Friday. General Motors also announced last Friday it also was temporarily stopping advertising on Twitter.