GOP Sen. Rand Paul on Tuesday stepped up his months-long fight with the nation’s top infectious disease expert, Dr. Anthony Fauci, suggesting he lied to Congress about whether the National Institutes of Health funded gain-of-function research at the Wuhan Institute of Virology, and triggering an angry shouting match. At a Senate Health Committee hearing meant to update lawmakers on the country’s COVID-19 response, the Kentucky Republican began by asking Fauci, director of the National Institute of Allergy and Infectious Diseases, if he’s aware that it’s a crime to lie to Congress.