Top infectious disease expert Dr. Anthony Fauci responds to accusations by Sen. Rand Paul, R-Ky., as he testifies before the Senate Health, Education, Labor, and Pensions Committee, on Capitol Hill in Washington, Tuesday, July 20, 2021. Cases of COVID-19 have tripled over the past three weeks, and hospitalizations and deaths are rising among unvaccinated people. (AP Photo/J. Scott Applewhite, Pool)