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Elena Chachko

@elenachachko

Law professor @Berkeley Law. Inaugural Rappaport Fellow @Harvard Law. Writing and teaching about law, geopolitics, administration and technology.

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21.11.2023
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Latest posts by Elena Chachko @elenachachko

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The EU Discovers Emergency Powers: Russian Assets Edition When is it justified for the EU to rely on emergency measures to protect Ukraine and counter Russia?

When is it justified for the EU to rely on emergency measures to protect Ukraine and counter Russia?

@elenachachko.bsky.social and Katerina Linos present a framework for answering that question:

www.justsecurity.org/129157/eu-em...

20.01.2026 13:29 πŸ‘ 38 πŸ” 18 πŸ’¬ 5 πŸ“Œ 1
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Trump orders 'blockade' of sanctioned oil tankers leaving, entering Venezuela This is Washington's latest move to increase pressure on Nicolas Maduro's government, targeting its main source of income.

β€œThere are serious questions on both the domestic law front and international law front,” Professor Elena Chachko (@elenachachko.bsky.social) told @reuters.com: www.reuters.com/world/americ... #BerkeleyLaw

17.12.2025 19:17 πŸ‘ 2 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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Delighted to see JIEL 28(3) out in the world, which includes my article 'Dollar Dominance, De-Dollarisation, and International Law'.

The rest of the issue is packed with sharp work (inc @jbentonheath.bsky.social, @dcpeat.bsky.social, @elenachachko.bsky.social).

academic.oup.com/jiel/article...

07.11.2025 12:40 πŸ‘ 10 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0

Thank you @phverdier.bsky.social @uvalaw.bsky.social Sokol colloquium and @lawprofpuig.bsky.social, Kathleen Claussen & Michael Waibel for a terrific issue.

20.10.2025 22:06 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

papers.ssrn.com/sol3/cf_dev/...

20.10.2025 22:03 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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The great @abenewman.bsky.social and I have a new paper in JIEL titled Building Norms of Economic coercion. It's a roadmap for thinking about the legitimacy of different instances of economic coercion, from unilateral sanctions to the tariff wars. Link below

20.10.2025 22:03 πŸ‘ 12 πŸ” 5 πŸ’¬ 1 πŸ“Œ 1
BBC Audio | Wake Up to Money | Drug costs and tariffs lost? Will Bain has the latest after an another eventful weekend for trade and geopolitics.

Listen: Assistant Professor Elena Chachko @elenachachko.bsky.social on BBC's Wake Up to Money discussing the recent U.S. Court of Appeals ruling on President Trump's tariffs: www.bbc.com/audio/play/m... #UCBerkeleyLaw

02.09.2025 18:25 πŸ‘ 2 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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β€˜One Voice’ and the Trump Administration’s Conduct of Foreign Affairs A new executive order deploys a contested theory of presidential authorityβ€”and uses it to target the public servants responsible for conducting America’s foreign relations.

On Friday, the State Department began firing over 1,000 employees.

In Feb, @SrAnderson.bsky.social and @ElenaChachko.bsky.social explained President Trump's "One Voice" executive order which asserted broad presidential prerogative over foreign affairs. www.lawfaremedia.org/article/one-...

14.07.2025 17:28 πŸ‘ 45 πŸ” 19 πŸ’¬ 2 πŸ“Œ 3

Spoke with @npr.org about presidential use of emergency authority and our present moment @ucberkeleylaw.bsky.social

09.06.2025 20:35 πŸ‘ 11 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
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What Trump's national emergencies could mean for American democracy Trump invoked emergency powers more times in his first 100 days than any other modern president has in that time. Experts worry it could lead to an upending of the constitutional balance of power.

"This is what happens when you take an instrument that has been very useful for many administrations, for many years, and now you overextend it," says @elenachachko.bsky.social, assistant professor of law at UC Berkeley Law on presidential use of emergency powers www.npr.org/2025/06/09/n... @npr.org

09.06.2025 19:48 πŸ‘ 6 πŸ” 4 πŸ’¬ 0 πŸ“Œ 1
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By 5-4 vote, #SCOTUS *denies* Trump’s emergency application in foreign aid funding cases, but in a way that sends things back to the district court *before* the payments will have to be made:

www.supremecourt.gov/opinions/24p...

05.03.2025 14:03 πŸ‘ 615 πŸ” 195 πŸ’¬ 38 πŸ“Œ 32
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Is It Time to Transfer Frozen Russian Assets to Ukraine? Calls Grow Louder. President Trump’s threat to abandon Ukraine added urgency to plans to fund security or reconstruction with the roughly $300 billion owned by Russia’s central bank.

From @nytimes.com: www.nytimes.com/2025/03/04/b...

04.03.2025 06:00 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

And yet there are serious precedent-setting effects to consider, as well as implications for European and American assets in other countriesβ€”frozen or not. The exigencies of the Ukraine situation should not obscure these concerns.

04.03.2025 05:56 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Are we about to see this line in sanctions policy crossed? Would not be a surprise in the wake of the Trump-Zelenskyy meeting. Transferring frozen assets in the Ukraine case could strike many as an instance of β€œunlawful but legitimate”.

04.03.2025 05:56 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Under international law, sanctions are supposed to be temporary and reversible. That’s why the assets are frozen, not permanently seized. Issues arise under U.S. law too. So far sanctioning countries agreed to let Ukraine take out a loan against proceeds from the seized assets but not the principal.

04.03.2025 05:56 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Calls are getting louder to allow the transfer of Russian frozen assets to support Ukraine as the U.S. pulls back. About 250B (of roughly 300) are held in EU. When this proposal was debated before manyβ€”Biden officials includedβ€”concluded that such transfer would likely be unlawful.

04.03.2025 05:56 πŸ‘ 4 πŸ” 0 πŸ’¬ 1 πŸ“Œ 1
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Read today's Executive Functions Morning Roundup: the next round in the battle over the admin's effort to fire Hampton Dellinger, more demotions for DOJ prosecutors, commentary from @sranderson.bsky.social and @elenachachko.bsky.social, and more (first three stories below). tinyurl.com/a9pz5834

02.03.2025 13:55 πŸ‘ 5 πŸ” 5 πŸ’¬ 1 πŸ“Œ 0
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β€˜One Voice’ and the Trump Administration’s Conduct of Foreign Affairs www.lawfaremedia.org/article/one-... by Prof @elenachachko.bsky.social and @sranderson.bsky.social @lawfare.bsky.social

28.02.2025 21:22 πŸ‘ 4 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0

One could parse this language but it sure reads like a full throated endorsement of a theory of executive power in foreign affairs that the Supreme Court has rejected, most recently in Zivotofsky II.

13.02.2025 21:34 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

From the EO: β€œArticle II of the United States Constitution vests the power to conduct foreign policy in the President of the United States.”

13.02.2025 21:34 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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www.oyez.org/cases/1900-1...

13.02.2025 21:34 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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One Voice for America's Foreign Relations By the authority vested in me as President by the Constitution and the laws of the United States of America, it is hereby ordered:

Interesting choice of language there with β€œone voice”…
www.whitehouse.gov/presidential...

13.02.2025 21:34 πŸ‘ 4 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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The Fordham International Law Journal Spring Symposium : Economic Sanctions and the Law: Goals, Enforcement, and Procedural and Substantive Limits The Fordham International Law Journal Spring Symposium : Economic Sanctions and the Law: Goals, Enforcement, and Procedural and Substantive Limits

Looking to make sense of our world of sanctions and economic statecraft? (Yeah, me too!)

Next Friday, February 21 at @fordhamlawnyc.bsky.social, the Fordham International Law Journal symposium on Economic Sanctions: go.activecalendar.com/FordhamUnive...

13.02.2025 21:21 πŸ‘ 4 πŸ” 8 πŸ’¬ 2 πŸ“Œ 3
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"PAUSING FOREIGN CORRUPT PRACTICES ACT ENFORCEMENT TO FURTHER AMERICAN ECONOMIC AND NATIONAL SECURITY" (?????)

11.02.2025 05:11 πŸ‘ 108 πŸ” 22 πŸ’¬ 17 πŸ“Œ 13

or is necessary for any reason to protect the revenue or to prevent unlawful importations." It is questionable whether the EOs properly exercised that waiver.

05.02.2025 20:33 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Section 321 does provide for a waiver. "The Secretary of the Treasury is authorized by regulations to prescribe exceptions to any exemption ... whenever he finds that such action is consistent with the purpose of subsection (a)...

05.02.2025 20:33 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Trump eliminated it anyway based on IEEPA, potentially setting up a conflict between the President and congressional statute (aka Youngstown category III).

05.02.2025 20:33 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

But Biden stopped short of modifying the exemption unilaterally via executive order. The reason for Biden's hesitation may have been a belief that eliminating the exception would require changing the statue.

05.02.2025 20:33 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Around 2020, lawmakers and Biden officials began advocating for reform to curb the flow of illicit goods like opioids and competition from predominantly Chinese companies delivering cheap merch directly to U.S. consumers. Notably, the U.S. threshold is comparatively very high.

05.02.2025 20:33 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

The de minimis exemption originates in sec. 321 of the Tariff Act of 1930. It now exempts imported goods up to 800 USD from standard duties and process. The exemption used to enjoy bipartisan support.

05.02.2025 20:33 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0