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Alex Mierjeski

I’m a research reporter at ProPublica based in New York.

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What I Cover

I cover a wide range of stories as a part of ProPublica’s national team. Most recently, I’ve contributed to investigations of the Supreme Court and the federal judiciary, as well as President Donald Trump’s business dealings.

My Background

I’ve worked with both local and national teams at ProPublica, where I’ve been a research reporter since 2020.

My work alongside colleagues in the newsroom has spurred change, driven news cycles and won awards. In 2024, my colleagues and I received the Pulitzer Prize for public service for our work revealing ties between Supreme Court justices and billionaire benefactors. Our stories helped lead to the court establishing a code of conduct — a first in its history. Our work also won a George Polk Award, the Selden Ring Award and an Investigative Reporters and Editors medal.

Prior to ProPublica I was a post-graduate reporting fellow at the Columbia University Graduate School of Journalism.

The Trump Administration Leaned on African Countries. The Goal: Get Business for Elon Musk.

The State Department has intervened on behalf of Musk’s satellite internet company in five developing nations. In Gambia, U.S. diplomats have lobbied and browbeat at least seven government ministers as part of a “maximum pressure” campaign.

U.S. AG Pam Bondi Sold More than $1 Million in Trump Media Stock the Day Trump Announced Sweeping Tariffs

Disclosure forms show that Bondi sold between $1 million and $5 million worth of shares on April 2. That day, after the market closed, Trump’s “Liberation Day” press conference sent the market tumbling.

Musk Adviser May Make as Much as $1 Million a Year While Helping to Dismantle Agency That Regulates Tesla and X

Records show that Chris Young is simultaneously working as a political adviser to Musk while serving in the Department of Government Efficiency, helping to gut the Consumer Financial Protection Bureau.

Internal VA Emails Reveal How Trump Cuts Jeopardize Veterans’ Care, Including To “Life-Saving Cancer Trials”

Despite a congressional mandate to expand care for veterans, internal Veterans Affairs messages obtained by ProPublica paint a stark portrait of how chaotic cost cutting has already imperiled tests of treatments for cancer, opioid addiction and more.

Politically Connected Firms Benefit From Trump Tariff Exemptions Amid Secrecy, Confusion

The administration’s lack of transparency about tariff exemptions has experts concerned that some firms might be winning narrow carve-outs behind closed doors. “It could be corruption, but it could just as easily be incompetence,” one lobbyist said.

How Elon Musk’s SpaceX Secretly Allows Investment From China

As a U.S. military contractor, SpaceX sees allowing Chinese ownership as fraught. But it will allow the investment if it comes through secrecy hubs like the Cayman Islands, court records say. “It is certainly a policy of obfuscation,” an expert said.

The End of Aid

Tổng thống Trump đã dừng hoạt động xử lý chất độc da cam. Việc làm này khiến cho hàng trăm nghìn người gặp nguy cơ bị nhiễm độc.

Các nhà ngoại giao ở Việt Nam đã cảnh báo Washington rằng việc ngừng lại các nỗ lực của USAID để khử độc một lượng lớn thuốc trừ sâu sau chiến tranh sẽ là một thảm họa cho sức khỏe cộng đồng và mối quan hệ với một đối tác chiến lược quan trọng ở châu Á.

The End of Aid

Trump Halted an Agent Orange Cleanup. That Puts Hundreds of Thousands at Risk for Poisoning.

Diplomats in Vietnam warned Washington that halting USAID’s efforts to clean up the massive deposit of postwar pesticides would be a catastrophe for public health and relations with a key strategic partner in Asia.

Secretive D.C. Influence Project Appears to Be Running a Group House for Right-Wing Lawmakers

Evangelical pastor Steve Berger’s political influence campaign operates out of his D.C. townhouse. In addition to House Speaker Mike Johnson living there, a prominent Trump ally, Rep. Andy Ogles, has the keys.

Speaker Mike Johnson Is Living in a D.C. House That Is the Center of a Pastor’s Secretive Influence Campaign

The Capitol Hill townhouse is owned by a major Republican donor. It’s the headquarters of a little-known political influence project that has reached a number of powerful Republican politicians.