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 2023, 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.
Congress Members Announce Hearing, Demand Chief Justice Investigate Clarence Thomas’ Trips
The lawmakers said the chief justice was duty-bound to conduct a “swift, thorough, independent and transparent investigation” of Thomas’ undisclosed travel with billionaire Harlan Crow in order to “safeguard public faith in the judiciary.”
Clarence Thomas Defends Undisclosed “Family Trips” With GOP Megadonor. Here Are the Facts.
In response to a ProPublica report, Thomas explained why he did not disclose lavish travel provided by billionaire Harlan Crow. But legal experts maintain the justice was required to make these disclosures.
Lawmakers Call for Investigation and Ethics Reforms in Response to ProPublica Report on Clarence Thomas
Influential Democratic legislators are pushing for changes at the Supreme Court and a probe into Thomas’ undisclosed luxury trips provided by powerful conservative donor Harlan Crow.
The Cold War Legacy Lurking in U.S. Groundwater
For the first time, ProPublica has cataloged cleanup efforts at the 50-plus sites where uranium was processed to fuel the nation’s nuclear arsenal. Even after regulators say cleanup is complete, polluted water and sickness are often left behind.
What We Know About Alaska’s Recent Series of Fatal Flight Collisions
In the past five years, Alaska had five fatal midair collisions involving commercial operators. The rest of the U.S. hasn’t had any since 2009.
Local Reporting Network
Gov. Jim Justice’s Companies Have Now Reached $140 Million in Lawsuit Settlements and Judgments Over Unpaid Bills
A company owned by West Virginia Gov. Jim Justice agreed to a $4.4 million settlement over missed coal shipments. ProPublica previously reported that Justice’s businesses were sued dozens of times for millions in unpaid bills.
Local Reporting Network
This Billionaire Governor’s Been Sued Over Unpaid Bills. A Judge Just Ordered Him to Pay More.
On Wednesday, another company owned by Gov. Jim Justice was ordered to pay nearly $2.8 million in a judgment over unpaid bills. The ruling comes just weeks before West Virginia’s primary election, where Justice is campaigning for a second term.
Local Reporting Network
See Who’s Taken Gov. Jim Justice to Court Over Unpaid Bills
West Virginia Gov. Jim Justice, a billionaire and the state’s richest man, has a long list of debt-collection cases. In the most complete analysis of his legal record to date, ProPublica found dozens totaling more than $128 million.
Local Reporting Network
See How This Political Boss and His Associates Bought Up Valuable Land After A Tax Break Law
Camden’s waterfront sat vacant for decades, but George E. Norcross III helped to usher in lucrative tax breaks. The land went to his friends and allies.
Local Reporting Network
Trump Town: Track White House Staff, Cabinet Members and Political Appointees Across the Government
Tracking White House staffers, Cabinet members and political appointees across the government