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.
Election Skeptics Are Running Some County Election Boards in Georgia. A New Rule Could Allow Them to Exclude Decisive Votes.
An examination of a new election rule in Georgia suggests that local officials in just a handful of rural counties could exclude enough votes to affect the outcome of the 2024 presidential race.
Top Execs Exit Trump Media Amid Allegations of CEO’s Mismanagement and Retaliation
Several people involved with the former president’s company, operator of Truth Social, believe the departures were retaliation following internal complaints about CEO Devin Nunes to the company board.
Judge Aileen Cannon Failed to Disclose a Right-Wing Junket
Cannon, whose oversight of the Donald Trump classified documents case has garnered widespread criticism, has repeatedly violated a rule requiring that federal judges disclose their attendance at private seminars.
Trump Company CEO’s Unexplained Meeting With Balkans Leader Raises Specter of New Conflict
Devin Nunes, the former congressman who runs the company behind Truth Social, traveled to North Macedonia as former President Trump vies to once again shape U.S. foreign policy.
Judge Cannon Should Be Removed From Trump Case, Watchdog Group Argues in New Legal Filing
Judge Aileen M. Cannon has shown bias in throwing out Trump’s classified documents case and must be replaced if the appeals court overturns her decision, argues public interest advocacy group Citizens for Responsibility and Ethics in Washington.
Exec at Trump Media Jumped the Line for U.S. Visa After Company Lobbied GOP Lawmaker
A former aide to Rep. Don Bacon, a Nebraska Republican, said she intervened on the company’s behalf even though she thought it was inappropriate. “It was specifically the congressman that suggested I needed to deal with it.”
Armed and Underground: Inside the Turbulent, Secret World of an American Militia
Rounding up migrants. Lists of “friendly” sheriffs. Debating political assassinations. Internal messages reveal AP3’s journey from Jan. 6 through the tumultuous lead-up to the 2024 election. One member predicts: “It’ll be decided at the ammo box.”
After Nike Leaders Promised Climate Action, Their Corporate Jets Kept Flying — and Polluting
Nike has staked a claim as a corporate leader on sustainability. Yet company disclosures show that its jets emitted almost 20% more carbon dioxide last year than in 2015. It’s one small factor in Nike’s failure to slash emissions as promised.
Trump Media Quietly Enters Deal With a Republican Donor Who Could Benefit From a Second Trump Administration
The deal with energy magnate James E. Davison illustrates how Trump’s stake in the Truth Social company, which makes up a majority of his net worth, presents conflicts of interest.
Trump Media Made a Deal That Could Secure a Major Financial Windfall for the GOP Candidate
The company behind Trump’s Truth Social platform has the option to sell up to $2.5 billion worth of shares, easing the way for the former president to convert his paper stake into something more tangible.