1/ The Supreme Court’s ruling in Chatrie v. United States is a win for privacy. In a 6-3 decision (with Justice Gorsuch concurring in judgment), the Court ruled that police need a warrant to obtain a person’s cell phone location information from a third party. Some background and key takeaways:

A bill up for a vote in the senate would renew the government’s power to conduct warrantless surveillance of Americans. @lizagoitein.bsky.social lays out the stakes of the fight over FISA Section 702.

On Friday, the Trump administration, which is demanding that Congress pass a straight reauthorization of FISA Section 702, missed a deadline to declassify a FISA Court opinion that reportedly reveals yet more major Section 702 compliance problems. 1/14

Speaker Johnson's latest proposal to reauthorize FISA Section 702 would perpetuate warrantless government access to Americans' "incidentally" collected communications. @lizagoitein.bsky.social and I explain why the House should reject the proposal (again): www.justsecurity.org/137206/johns...

In a dramatic scene that unfolded in the wee hours this morning, members of the House defeated a ploy by the administration and Speaker Johnson to ram through a 5-year reauthorization of FISA Section 702. Here’s what happened, and what will/should happen next. 1/20

President Trump is urging Congress to renew Section 702 of the Foreign Intelligence Surveillance Act, but lawmakers in both parties oppose extending it without reforms. Congress now has a chance to protect Americans’ privacy. bit.ly/4tASUmW

The @nytimes.com has a story tonight that should put a nail in the coffin of the administration’s plans to push a straight reauthorization of FISA Section 702. Bottom line: the FBI is seemingly *still* engaged in systemic violations of the law. 1/20 www.nytimes.com/2026/04/09/u...

The FBI reports a large drop in its warrantless searches of Americans' communications under Section 702. @lizagoitein.bsky.social and I explain why the reported numbers don't tell the full story — and why a warrant requirement is still needed.

By a 6-3 vote, the Supreme Court has held that Trump’s worldwide tariffs exceeded his authority under the International Emergency Economic Powers Act (IEEPA). The decision is a victory for the rule of law and the separation of powers. 1/18 www.supremecourt.gov/opinions/25p...

SCOTUS tariffs ruling "is a victory for the rule of law," says @lizagoitein.bsky.social. Emergency laws like IEEPA "give presidents vast powers that are highly vulnerable to abuse." The Court stopped Trump from stretching them beyond what Congress intended.

No DHS funding without stronger oversight and accountability, civil liberties protections, curbs on violence. Congress must "flex its muscle" - by @rlevinsonwaldman.bsky.social, @margyoh.bsky.social, @hannahajames.bsky.social

DHS has a Fourth Amendment problem. @hannahajames.bsky.social of the @brennancenter.org explains why the agency’s new policy allowing ICE to enter homes to conduct arrests is not only a break from past practice, it violates the Constitution. www.justsecurity.org/130497/dhs-w...

The Constitution gives Congress, not the president, the power to declare war. bit.ly/49qN4Mv

My take on the appellate courts' rulings in the Nat'l Guard cases, & why SCOTUS should follow the approach of the 7th Circuit (which held that the deployment was untethered to the facts), not the 9th Circuit (which accepted the admin's alternate reality): www.brennancenter.org/our-work/res...

Sen. Cotton is reportedly pushing for an 18-month extension of Section 702 of the Foreign Intelligence Surveillance Act. Project for Privacy & Surveillance Accountability explains why that would derail any meaningful consideration of reform: www.protectprivacynow.org/news/the-lat...

Members of Congress, represented by the Brennan Center & co-counsel, just filed a federal court brief defending the independence of the Privacy and Civil Liberties Oversight Board (PCLOB). It’s in support of 2 board members fired without cause by the Trump admin www.brennancenter.org/sites/defaul...

The Trump administration’s plan to use 600 military lawyers as temporary immigration judges, with some starting as soon as this week, will deprive immigrants of a fair hearing and further erode the line between military personnel and civilian government. 1/14

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...

A U.S. Court of Appeals ruled Friday that Trump exceeded his presidential authority by imposing tariffs. The Brennan Center filed a brief in the case arguing that the emergency powers law he relied on didn’t grant presidents that authority. bit.ly/4g31plb

THREAD: This morning, President Trump and members of his cabinet announced a set of sweeping, unprecedented, and unwarranted actions to impose federal control over local policing in Washington, D.C.

The government has proposed expanding the mandatory collection of social media identifiers. It would widen social media surveillance to include not only travelers and visa applicants and visa holders, but also their U.S. citizen contacts. www.brennancenter.org/our-work/res...

Border Patrol is buying new tech... "advanced AI" to surveil dense residential areas? Automated surveillance towers? Tech to see through walls?? I talked to @sambiddle.com of @theintercept.com about serious risks amid the agency's increasingly aggressive behavior. theintercept.com/2025/07/23/c...

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

Yesterday the Brennan Center filed an amicus brief in support of four companies that challenged Trump’s imposition of worldwide tariffs under the International Emergency Economic Powers Act (IEEPA). 1/15 www.brennancenter.org/our-work/cou...

Turning the U.S.–Mexico border into a military zone seems designed to sidestep Congress. It’s the kind of presidential overreach that Congress and the courts should check.

The line between the military and civilian government is one of the most important safeguards that we have. Creating a military installation on the border? “It steps over that line,” @lizagoitein.bsky.social tells @maddow.msnbc.com www.msnbc.com/rachel-maddo...

In a memo obtained by @usatoday.com, the Attorney General authorized federal law enforcement to conduct warrantless raids on homes as part of its deportation efforts under the Alien Enemies Act. This enforcement strategy raises serious 4th Amdt concerns. 1/9 www.documentcloud.org/documents/25...

If the SAVE Act were enacted into law, it would be one of the worst voting laws ever passed by Congress. The Senate must vote to reject it.

A court held searches of #FISA Sec 702 data for US person communications are subject to the 4th Amdt. warrant requirement @hannahajames.bsky.social (@brennancenter.bsky.social) asks: will broad reading of the foreign intelligence exception swallow the rule? www.justsecurity.org/109879/forei...

The political question doctrine does not bar judicial review of the Trump administration’s recent #AlienEnemiesAct invocation, writes @ebrightyon.bsky.social; to the contrary, precedent establishes the important role of courts. www.justsecurity.org/109330/polit...

Tell Congress: Reject the SAVE Act. The SAVE Act would restrict 21 million American citizens from voting by requiring a birth certificate or passport to register to vote. Let your representatives in Congress know you’re against this legislation: