On March 29, 2026, Senator Elizabeth Warren (D-MA, Ranking Member of the Senate Banking Committee) and Representative Jamie Raskin (D-MD, Ranking Member of the House Judiciary Committee), leading a coalition of 52 Congressional Democrats (8 senators + 44 representatives), sent formal inquiry letters to six detention contractors and real estate firms involved in the Trump administration's warehouse-based ICE detention expansion. The press release was published March 30, 2026, with a response deadline of April 13, 2026.
Recipients
| Company | Role in Buildout | |---|---| | PNK Group (Andrey Sharkov) | Seller, Social Circle GA warehouse ($128.5M) | | CoreCivic | Private detention operator | | GEO Group | Private detention operator | | GardaWorld Federal Services | Detention operator | | Newmark Group | Real estate brokerage | | KVG LLC | Real estate firm |
Signatories
Senators (8): Warren (lead), Markey (MA), Sanders (VT), Blumenthal (CT), Van Hollen (MD), Kelly (AZ), Booker (NJ), Kim (NJ), Warnock (GA).
Representatives (44): Raskin (lead), Ansari, Balint, Brownley, Casten, Castro, Cherfilus-McCormick, Chu, Crockett, Dean, DeGette, Dexter, Escobar, Frost, García (Jesús), Garcia (Sylvia), Goldman, Ivey, Jayapal, Johnson, Kamlager-Dove, Kelly (Robin), Lofgren, McClain Delaney, McClellan, McGovern, Menendez, Moulton, Nadler, Neguse, Norton, Omar, Ross, Ryan, Salinas, Scanlon, Shakowsky, Stansbury, Swalwell, Tlaib, Underwood, Ramirez, Beyer, Walkinshaw.
Questions Asked of Each Recipient
Per the press release and cover letter language, each company was asked to provide:
1. Roles in the warehouse expansion projects — specific properties, contracts, and services 2. Expected profit margins from the project 3. Campaign donations or contributions to Trump officials — direct and indirect 4. Commitment to prevent facilitating inhumane detention conditions — contractual terms, oversight mechanisms, exit provisions
Specific Facts Cited in the Letters
Quoted Language from the Letters
> "These warehouses were built to hold products, not people … Given the public's grave concerns about this warehouse system, we request prompt answers to questions about your involvement in the system."
> "Placing thousands of people in warehouses that were never intended to house human beings will only exacerbate these problems."
Named Administration Officials and Procurement Mechanisms
The letters contextualize the inquiry by identifying revolving-door conflicts:
The procurement mechanism identified: Navy contracting program bypassing competitive bidding (WEXMAC-TITUS) with non-disclosure agreements on transaction details.
The PNK-Specific Letter
The letter addressed to Andrey Sharkov at PNK Group's 17 State Street, Floor 39 NYC headquarters specifically raises:
(The PDF version of the letter could not be directly text-extracted; specifics above are sourced to the press release, Salon coverage, AOL/AP reporting, and the Atlanta Press Collective's prior reporting cited in the letter.)
Significance
This is the most consequential Congressional oversight action documented in the detention-industrial-KB to date. Six named companies; 52 lawmakers; formal questions on profit margins, campaign contributions, and inhumane-conditions prevention; an April 13, 2026 deadline.
As of the original Convergence Brief on April 23, 2026, it is not yet publicly documented whether any of the six recipients responded by the deadline, what their responses were, or whether Warren and Raskin have filed follow-up inquiries.
The letter to PNK Group creates a specific public record:
1. Congressional documentation of Sharkov's Russian-origin corporate history. 2. Documentation of the 4-5x markup on the Social Circle transaction (implicit in the "approximately 5x prior assessed value" language in the cover letters). 3. Named linkage of PNK to the WEXMAC-TITUS procurement bypass.
Combined with Sharkov's sworn deposition of February 20, 2025 (continuing Moscow residence per the divorce case, see sharkov-andrey), the ICIJ Offshore Leaks entry, and the five-jurisdiction aircraft-ownership litigation with former pilot Aleksandr Buzin, this creates a documentary record sufficient for sustained investigative reporting.