IRS Criminal Investigator Joseph Ziegler (2nd from right) and IRS Supervisory Special Agent Gary Shapley (2nd from left), who both worked on the federal investigation into Hunter Biden, deliver ...

Across his seven-year pursuit of Hunter Biden’s unpaid taxes, Ziegler, a special agent in the Internal Revenue Service’s criminal investigative division, and his colleague Gary Shapley were shunned, ...

The Trump administration has placed a political appointee in charge of tax investigations, in a break with longtime precedent ...

Review and Outlook: Under oath, IRS agents Gary Shapley and Joseph Ziegler say their attempt to investigate Hunter Biden faced unprecedented meddling from the Justice Department. Will Attorney ...

Gary Shapley and Joseph Ziegler, two veteran IRS investigators, will serve as senior advisors to incoming Treasury Secretary Scott Bessent, who said in a statement on Tuesday that he was "pleased ...

Treasury Secretary Scott Bessent is bringing a pair of IRS whistleblowers who faced retaliation over their work on the Hunter Biden tax case to work at the Treasury Department.