President Donald Trump's campaign to invalidate former President Joe Biden's pardons gave Anthony Fauci the ammunition to stonewall Senate Republicans at a Wednesday hearing, according to a pro-Trump former prosecutor. As the hearing continued, Sen. Rand Paul (R-KY), the committee chairman, made his frustration clear. "It's against the law to obstruct an investigation of Congress," Paul warned Fauci. Shipley argued that Trump's quest to void Biden's pardons had undermined the efforts of Senate Republicans. Fauci could, however, be prosecuted for any crimes he was accused of after the pardon was issued.