The industrial giant Caterpillar hired William Barr and other lawyers to defuse a federal criminal investigation of alleged tax dodges.

​Read More Caterpillar Inc, Tax Evasion, Tax Shelters, Corporate Taxes, Justice Department, Internal Revenue Service, Ethics and Official Misconduct, United States Politics and Government, Inspectors General, Attorneys General, Whistle-Blowers, Federal Deposit Insurance Corp, Barr, William P, Cole, James M, Trump, Donald J, Legal Profession