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Richard Drew / AP File Photo

Twitter has filed a lawsuit against the U.S. government to fight off a request for information about an anti-Trump account claiming to be run by US immigration officials. @ALT_USCIS, which already has 34,000 followers, and has been tweeting against President Trump's policies since January. Twitter declined to comment beyond the court document.

First Amendment: Twitter is invoking the First Amendment's free speech protection in its complaint. Twitter also claims the Customs and Border Protection agency is misusing a law meant only for cases of potentially illegal merchandise imports to get the account's information, though it's clear to the company that it has other motives.

Twitter has fought multiple government requests for information in the past, as well as gag orders preventing it from disclosing the requests themselves.

Twitter and Trump: Twitter is finding itself caught in the middle of Trump and his opponents. The president has been regularly using the service to broadcast his thoughts and to rally his supporters, so opponents have also taken to using the service.

Go deeper

42 mins ago - World

Putin foe Navalny to be detained for 30 days after returning to Moscow

Russian opposition leader Alexey Navalny. Photo: Oleg Nikishin/Epsilon/Getty Images

Russian opposition leader Alexey Navalny has been ordered to remain in pre-trial detention for 30 days, following his arrest upon returning to Russia on Sunday for the first time since a failed assassination attempt last year.

Why it matters: The detention of Navalny, an anti-corruption activist and the most prominent domestic critic of Russian President Vladimir Putin, has already set off a chorus of condemnations from leaders in Europe and the U.S.

Biden picks Warren allies to lead SEC, CFPB

Photo: Justin Sullivan/Getty Images

President-elect Joe Biden has selected FTC commissioner Rohit Chopra to be the next director of the Consumer Financial Protection Bureau (CFPB) and Obama-era Wall Street regulator Gary Gensler to lead the Securities and Exchange Commission (SEC).

Why it matters: Both picks are progressive allies of Sen. Elizabeth Warren (D-Mass.) and viewed as likely to take aggressive steps to regulate big business.

The perils of organizing underground

Illustration: Aïda Amer/Axios

Researchers see one bright spot as far-right extremists turn to private and encrypted online platforms: Friction.

Between the lines: For fringe organizers, those platforms may provide more security than open social networks, but they make it harder to recruit new members.