Four days after President Donald Trump signed an executive order temporarily banning immigrants from seven predominantly Muslim countries and halting refugees from entering the country, the political whirlwind he unleashed shows no sign of letting up. That the Trump administration spent the last 72 hours struggling to articulate its argument and walking back parts of the order did little to control the chaos, nor did reports that some of Trump’s key Cabinet nominees and related agencies were not consulted. The crisis deepened on Monday night, when Trump promptly fired the acting attorney general for refusing to defend his immigration ban.

With thousands of people across the country protesting at airports, hundreds of thousands of individuals donating to the American Civil Liberties Union, and Senators John McCain and Lindsey Graham warning of the order’s danger, executives at many major U.S. companies raised their voices, too. Starbucks C.E.O. Howard Schultz pledged to hire 10,000 refugees over the next five years. Netflix’s Reed Hastings said that “Trump’s actions are hurting Netflix employees around the world, and are so un-American it pains us all.” Apple’s Tim Cook, Facebook’s Mark Zuckerberg, and General Electric’s Jeff Immelt voiced their concerns. Airbnb C.E.O. Brian Chesky said his company would offer free housing to people stranded by the ban, and ride-share app Lyft pledged to donate $1 million to the A.C.L.U. over the next four years.

Even with a number of influential executives speaking out against the executive order, many C.E.O.s were more judicious in their responses, or stayed completely silent. Elon Musk, for example, who is an adviser to the president, was upset about the order, according to sources close to Musk who spoke to The New York Times’s Andrew Ross Sorkin , but his response was more tepid.

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Musk wasn’t alone. One source noted to Sorkin that executives were worried about “losing whatever influence he might have on the president to guide him to make sensible policy in other areas” if they came out too harshly.

Surprisingly, Fox News, which has been so firmly in Trump’s camp that the president has recently and repeatedly praised the network and congratulated it on its ratings, was among those who didn’t hold back. In a memo to staff sent around on Monday, Lachlan and James Murdoch, who run 21st Century Fox, said the company is doing everything in its power “to assist impacted colleagues and their families,” according to CNNMoney. The brothers noted that the company values “the unique perspective offered by our many people who came to the U.S. in search of the opportunity for unfettered self-expression” and “deeply [values] diversity and believe immigration is an essential part of America's strength.” (The Murdochs themselves are immigrants who now live in the U.S.)