When Congress Comes Calling: A Handbook for Responding to Congressional Investigations – 2025 Edition

Jenner & Block's nationally ranked, bipartisan Congressional Investigations practice, in partnership with the Project on Government Oversight (POGO), released the 2025 edition of When Congress Comes Calling, the definitive guide for parties to congressional investigations. This is the first update to the handbook since 2017.

Download Here

The handbook offers practical guidance for congressional investigators on everything from document requests and depositions to dealing with privilege assertions and enforcing subpoenas. For nearly two decades, it has served as the go-to resource for the congressional oversight community, including staff and counsel to the executive branch and private sector.

Since the last edition, Congress's expanded use of its investigative authority, more aggressive oversight of private parties, and increased media attention have fundamentally reshaped how congressional investigations unfold and their potential impact on those being examined. This updated edition provides critical analyses of recent legal developments, evolving investigative practices, and strategic considerations for modern congressional investigations. The handbook features insights from guest editors comprising Democratic and Republican experts who have held senior positions across the legislative and executive branches, offering readers information essential for effectively navigating congressional oversight.

© 2026 Jenner & Block LLP. Attorney Advertising. Jenner & Block LLP is an Illinois Limited Liability Partnership including professional corporations. This publication, presentation, or event is not intended to provide legal advice but to provide information on legal matters and/or firm news of interest to our clients and colleagues. Readers or attendees should seek specific legal advice before taking any action with respect to matters mentioned in this publication or at this event. The attorney responsible for this communication is Brent E. Kidwell, Jenner & Block LLP, 353 N. Clark Street, Chicago, IL 60654-3456. Prior results do not guarantee a similar outcome. Jenner & Block London LLP, an affiliate of Jenner & Block LLP, is a limited liability partnership established under the laws of the State of Delaware, USA and is authorised and regulated by the Solicitors Regulation Authority with SRA number 615729. Information regarding the data we collect and the rights you have over your data can be found in our Privacy Notice. For further inquiries, please contact dataprotection@jenner.com.

When Congress Comes Calling: A Handbook for Responding to Congressional Investigations – 2025 Edition

Jenner & Block's nationally ranked, bipartisan Congressional Investigations practice, in partnership with the Project on Government Oversight (POGO), released the 2025 edition of When Congress Comes Calling, the definitive guide for parties to congressional investigations. This is the first update to the handbook since 2017.

Download Here

The handbook offers practical guidance for congressional investigators on everything from document requests and depositions to dealing with privilege assertions and enforcing subpoenas. For nearly two decades, it has served as the go-to resource for the congressional oversight community, including staff and counsel to the executive branch and private sector.

Since the last edition, Congress's expanded use of its investigative authority, more aggressive oversight of private parties, and increased media attention have fundamentally reshaped how congressional investigations unfold and their potential impact on those being examined. This updated edition provides critical analyses of recent legal developments, evolving investigative practices, and strategic considerations for modern congressional investigations. The handbook features insights from guest editors comprising Democratic and Republican experts who have held senior positions across the legislative and executive branches, offering readers information essential for effectively navigating congressional oversight.

© 2026 Jenner & Block LLP. Attorney Advertising. Jenner & Block LLP is an Illinois Limited Liability Partnership including professional corporations. This publication, presentation, or event is not intended to provide legal advice but to provide information on legal matters and/or firm news of interest to our clients and colleagues. Readers or attendees should seek specific legal advice before taking any action with respect to matters mentioned in this publication or at this event. The attorney responsible for this communication is Brent E. Kidwell, Jenner & Block LLP, 353 N. Clark Street, Chicago, IL 60654-3456. Prior results do not guarantee a similar outcome. Jenner & Block London LLP, an affiliate of Jenner & Block LLP, is a limited liability partnership established under the laws of the State of Delaware, USA and is authorised and regulated by the Solicitors Regulation Authority with SRA number 615729. Information regarding the data we collect and the rights you have over your data can be found in our Privacy Notice. For further inquiries, please contact dataprotection@jenner.com.

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Amanda Shafer Berman to Speak on Energy and Administrative Law at WEN-DC Webinar

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October 14, 2026

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Partner Amanda Shafer Berman Quoted in Bloomberg Law on Senate Permitting Overhaul Bill

Partner Amanda Shafer Berman was quoted in an October 5 Bloomberg Law article, "Permitting Deal Gives Projects Defense Against Litigation Delays," on the Senate's new permitting overhaul package and its expected impact on litigation over federal permitting reversals.

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Partner John Storino to Speak at Sandpiper Partners' “AI and Outside Counsel Guidelines Roundtable”

On October 8, Partner John Storino will serve as a panelist at the “AI and Outside Counsel Guidelines Roundtable,” hosted by Sandpiper Partners in Chicago.

October 8, 2026

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Partner Meghan Greenfield to Speak on Supreme Court Climate Case at Edison Electric Institute's Fall Legal Conference

On Wednesday, October 7, Partner Meghan Greenfield will speak on a panel titled "Boulder County v. Suncor Energy: What the Supreme Court's Climate Case Means for the Energy Industry" at the Edison Electric Institute's Fall Legal Conference in Salt Lake City, Utah.

October 7, 2026

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The Form Rules Everything: A Seventh Circuit Ruling on ERISA's Substantial Compliance Doctrine

Partner Joseph Torres and Special Counsel Jennifer Beach authored an article for Employee Relations Law Journal examining the Seventh Circuit's decision in Packaging Corp. of America Thrift Plan for Hourly Employees v. Langdon, a ruling that addresses both the standard of review in ERISA interpleader actions and the continued viability of the substantial compliance doctrine for changing plan beneficiaries.

October 5, 2026