By Joe Ziegler

By Gary Shapley

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In this gripping account, IRS special agents-turned-whistleblowers Gary Shapley and Joe Ziegler expose the shocking truth behind their investigation into the Biden family—and the powerful forces that tried to stop them.

Shapley and Ziegler made headlines when they testified before Congress, revealing political interference, bureaucratic stonewalling, and outright obstruction in the Hunter Biden criminal case. Despite overwhelming evidence, they watched as the system bent to protect the powerful, with the IRS, FBI, and DOJ failing to act as independent institutions.

Their investigation ultimately led to Hunter Biden’s federal conviction. But in a stunning last-minute move, President Joe Biden pardoned his son—then went even further, issuing blanket pardons to other family members before leaving office.

But this isn’t just about Hunter Biden. It’s about two public servants who risked everything to expose corruption. Facing retaliation, isolation, and intense public scrutiny, Shapley and Ziegler take readers inside the high-stakes battle between truth and power.

Packed with never-before-revealed details and explosive insider accounts, The Whistleblowers vs. The Big Guy is a must-read for anyone who wants to understand how the system protects its own—and what it takes to fight back.

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On Sale: Nov 11, 2025
Page Count: 256 pages
Publisher: Center Street
ISBN-13: 9780316596596

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Joe Ziegler

About the Author

Gary Shapley grew up in Norwich, NY, and began his college career at Binghamton University before volunteering with AmeriCorps in Colorado. He later earned a B.S. in Accounting and Business Administration from the University of Maryland and an MBA from the University of Baltimore. After interning at the Department of Defense, Gary worked in the Inspector General’s Office at the NSA before joining IRS-Criminal Investigation (IRS-CI) in 2009. From 2013 to 2018, he was detailed to the DOJ Tax Division, investigating foreign financial institutions, including Credit Suisse and HSBC PBRS, as part of the Swiss Bank Program. He also worked on the Joint Terrorism Task Force (JTTF) at the FBI Washington and Baltimore Field Offices. In 2018, he was promoted to Supervisory Special Agent in Baltimore and helped establish the Joint Chiefs of Global Tax Enforcement (J5), an international effort to combat financial crimes. He later led the International Tax and Financial Crimes (ITFC) group, overseeing elite agents specializing in complex tax fraud cases where he continues to work today.

Joseph Ziegler grew up in Kirtland, Ohio, and graduated from Ohio University in 2007 with a B.S. in Accounting. He worked as an external auditor at Ernst & Young LLP, handling clients like the Cleveland Clinic and Lincoln Electric, while earning his MBA from John Carroll University in 2009. Joe joined IRS-CI in 2010, specializing in healthcare fraud and prescription drug diversion. In 2016, he transferred to the Atlanta Field Office, working on complex Captive Insurance Tax Shelter cases while serving as the Public Information Officer. In November 2018, he initiated the Hunter Biden case while joining the International Tax & Financial Crimes Group (ITFC) in Washington, D.C. Often called the “Seal Team 6 of the IRS,” this elite unit investigates high-level tax fraud and financial crimes worldwide, where Joe continues his work today.

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