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.
Nike Pledged to Shrink Its Carbon Footprint. It Just Slashed the Staff Charged With Making That Happen.
Since December, Nike has lost about 30% of employees who worked primarily on sustainability initiatives, due to layoffs, voluntary departures or transfers to other duties. Already, the company was missing its targets for reducing emissions.
Harlan Crow Provided Clarence Thomas at Least 3 Previously Undisclosed Private Jet Trips, Senate Probe Finds
The Supreme Court justice flew to Montana and other destinations on the billionaire GOP donor’s dime. Crow’s lawyer revealed these flights to the Senate Judiciary Committee, whose ongoing investigation was sparked by ProPublica’s reporting.
Justice Thomas Acknowledges He Should Have Disclosed Free Trips From Billionaire Donor
The trips include vacations in Indonesia and at the exclusive, men’s-only Bohemian Grove retreat, which were first reported by ProPublica last year.
For the Women Who Accused the Trump Campaign of Harassment, It’s Been More Harassment
Trump is well known for publicly bullying his political rivals, but the former president’s campaign has also used similar tactics to launch private, relentless attacks against some of its own workers.
Blinken Is Sitting on Staff Recommendations to Sanction Israeli Military Units Linked to Killings or Rapes
A special State Department panel told Secretary of State Antony Blinken that the U.S. should restrict arms sales to Israeli military units that have been credibly accused of human rights abuses. He has not taken any action.
Trump’s Lawyers Told the Court That No One Would Give Him a Bond. Then He Got a Lifeline, but They Didn’t Tell the Judges.
An appeals court reduced Trump’s bond by more than 60% after his attorneys claimed it was a “practical impossibility” to pay the full amount. Their failure to disclose a proposal from a billionaire financier may have violated ethics rules.
Republicans Hatched a Secret Assault on the Voting Rights Act in Washington State
After he helped create the state’s voting maps, a redistricting commissioner quietly worked with national Republican figures to bring a lawsuit against his own work.
In the Scar of New Mexico’s Largest Wildfire, a Legal Battle Is Brewing: What Is Victims’ Suffering Worth?
A wildfire accidentally started by the federal government drove them from their homes and destroyed the things they loved most about their land. The government will pay them only for things with a price tag.
Local Reporting Network
Supreme Connections: Search Supreme Court Financial Disclosures
Find organizations and people that have paid the current justices, reimbursed them for travel, given them gifts and more.
A “Delicate Matter”: Clarence Thomas’ Private Complaints About Money Sparked Fears He Would Resign
Interviews and newly unearthed documents reveal that Thomas, facing financial strain, privately pushed for a higher salary and to allow Supreme Court justices to take speaking fees.