States and cities can’t block legitimate federal operations, but they do have the power to decide whether and how they collaborate with federal law enforcement.

NEW: Internal report reveals DHS intelligence portal was accidentally opened to tens of thousands of users for months, exposing sensitive intel about Americans. @brennancenter.org obtained the docs. @wired.com has the story. 🧵 www.wired.com/story/a-dhs-...

🧵 NEW from 404 Media: ARC, a data broker owned by major US airlines, including American Airlines, United, and Delta, is selling access to 5 billion ticketing records to the government (incl. ICE and FBI), which can be used for warrantless searching and monitoring of peoples’ movements. 1/

THREAD: This morning, U.S. District Judge Charles Breyer ruled that President Trump's use of National Guardsmen and Marines to support federal law enforcement in and around Los Angeles violated the Posse Comitatus Act. (1/22) www.cbsnews.com/news/judge-t...

Back in April, U.S. Citizenship & Immigration Services (USCIS) announced that it was going to begin looking for "antisemitic activity" in the social media of applicants for a range of immigration benefits, including foreign students and most green card applicants. www.uscis.gov/newsroom/new...

I have so much to say about this and no time to say it... www.politico.com/news/2025/06...

The @brennancenter.org obtained a letter the ‪ @nyccomptroller.bsky.social and @advocate.nyc.gov sent to the Mayor on Tuesday asking an important question: What’s going on with the NYPD Inspector General’s office?

1/ Yesterday, the Trump administration announced its AI Action Plan - a pillar of which is an executive order that vows to end federal procurement of “woke AI.” The order would not only chill speech but also make the technology more unreliable and untrustworthy. www.whitehouse.gov/presidential...

“If the president can use the military as a domestic police force entirely under his control, it can be used as a tool of tyranny and oppression. We’ve seen it all around the world and throughout history" @lizagoitein.bsky.social of @brennancenter.org told @theintercept.com

The so-called big beautiful bill — now signed into law — will create a deportation-industrial complex like this country has never seen, allocating $175 billion over the next 4 years with the goal of deporting 1 million immigrants each year. www.brennancenter.org/our-work/ana... 1/14

The United States sued Los Angeles over its sanctuary laws, which direct agencies not to help federal immigration enforcement. The suit follows others, and threats to cut funding and prosecute local officials. These actions violate the Constitution: 1/ www.brennancenter.org/our-work/ana...

1/ The government is fielding AI to gather intelligence, patrol borders, and fight wars. My latest in @lawfaremedia.org explains how Congress should step up its scrutiny of the ways taxpayer dollars are spent on acquiring and developing these systems: www.lawfaremedia.org/article/narr...

The president’s mass deportation effort means increased focus on immigration courts — our new explainer covers how the system works:

Recent news reports indicate that the State Department has told US embassies and consulates to stop scheduling student visa interviews until it issues instructions on implementing mandatory social media checks for all foreign student applicants. 1/14 www.cnn.com/2025/05/27/p...

The @nytimes.com is reporting that the Trump administration has requested deployment of 20,000+ National Guard members to help with immigration enforcement inside the U.S. This is an unprecedented move that raises a host of legal and practical concerns. 1/8

On Monday, the President issued two executive orders that seek to coopt local police into fighting the federal government’s immigration war—and punish jurisdictions that opt out. The orders run afoul of the Tenth Amendment to the Constitution. 🧵 www.nytimes.com/2025/04/28/u...

Creating a "military installation" at the border is dangerous to democracy, @lizagoitein.bsky.social l tells @maddow.msnbc.com. "An army turned inward can very quickly become an instrument of tyranny, and we have seen that in countries all over the world." www.msnbc.com/rachel-maddo...

Arresting a judge for something like this is dangerous and wrong. We know that ICE's presence in courthouses makes our communities less safe. 1/2

The Alien Enemies Act is outdated, dangerous, and utterly discredited. The admin's use of the law is "a flagrant abuse of power." — @lizagoitein.bsky.social and @ebrightyon.bsky.social explain in @theatlantic.com