Dr. Anthony Fauci, White House Chief Medical Advisor and Director of the NIAID, responds to questions from Sen. Rand Paul (R-KY) at a Senate Health, Education, Labor, and Pensions Committee hearing on Capitol Hill on January 11, 2022 in Washington, D.C.

Dr. Anthony Fauci expressed optimism about the state of the pandemic in the U.S. on Tuesday.

"We are certainly right now in this country out of the pandemic phase," Fauci, the White House's chief medical adviser and director of the National Institute of Allergy and Infectious Diseases, told PBS NewsHour.