A former top U.S. Department of Justice official under Attorney General Eric Holder Jr. on Wednesday pressed his call for changes to the False Claims Act, telling lawmakers that one of the law’s provisions is “completely irrational.”

Ogden, who served as second-in-command at the Justice Department before returning to Wilmer Cutler Pickering Hale and Dorr, testified at an oversight hearing on behalf of the U.S. Chamber of Commerce, one of his firm’s clients.