Vice President Kamala Harris talks to George Mitchell as he receives a COVID-19 vaccine at a COVID-19 pop-up center at Ebenezer Baptist Church, Friday, June 18, 2021, in Atlanta. (AP Photo/Jacquelyn Martin)

Vice President Kamala Harris talks to George Mitchell as he receives a COVID-19 vaccine at a COVID-19 pop-up center at Ebenezer Baptist Church, Friday, June 18, 2021, in Atlanta. (AP Photo/Jacquelyn Martin)

Vice President Kamala Harris speaks at Clark Atlanta University, Friday, June 18, 2021, in Atlanta. (AP Photo/Jacquelyn Martin)

President Joe Biden speaks about reaching 300 million COVID-19 vaccination shots, in the State Dining Room of the White House, Friday, June 18, 2021, in Washington. (AP Photo/Evan Vucci)

President Joe Biden speaks about reaching 300 million COVID-19 vaccination shots, in the State Dining Room of the White House, Friday, June 18, 2021, in Washington. (AP Photo/Evan Vucci)

President Joe Biden speaks about reaching 300 million COVID-19 vaccination shots, in the State Dining Room of the White House, Friday, June 18, 2021, in Washington. (AP Photo/Evan Vucci)

President Joe Biden speaks about reaching 300 million COVID-19 vaccination shots, in the State Dining Room of the White House, Friday, June 18, 2021, in Washington. (AP Photo/Evan Vucci)

President Joe Biden speaks about reaching 300 million COVID-19 vaccination shots, in the State Dining Room of the White House, Friday, June 18, 2021, in Washington. (AP Photo/Evan Vucci)

Vice President Kamala Harris stands with Sen. Raphael Warnock, D-Ga., as she speaks at a COVID-19 vaccine pop-up center at Ebenezer Baptist Church, Friday, June 18, 2021, in Atlanta. (AP Photo/Jacquelyn Martin)

Vice President Kamala Harris speaks at a COVID-19 vaccine pop-up center at Ebenezer Baptist Church, Friday, June 18, 2021, in Atlanta. (AP Photo/Jacquelyn Martin)

Vice President Kamala Harris speaks at Clark Atlanta University, Friday, June 18, 2021, in Atlanta. (AP Photo/Jacquelyn Martin)