President Joe Biden puts on his face mask after speaking about the COVID-19 relief package in the State Dining Room of the White House, Monday, March 15, 2021, in Washington. (AP Photo/Patrick Semansky)

Vice President Kamala Harris gives her order to Germaine Turnbow, while stopping for lunch at Tacotarian, Monday March 15, 2021, in Las Vegas. President Joe Biden, Vice President Kamala Harris and their spouses are opening an ambitious, cross-country tour to highlight the $1.9 trillion coronavirus relief plan and its benefits. (AP Photo/Jacquelyn Martin)

Vice President Kamala Harris and her husband, Doug Emhoff, are greeted by Nevada Gov. Steve Sisolak and his wife Kathy, as they arrive in Las Vegas, Monday, March 15, 2021. President Joe Biden, Vice President Kamala Harris and their spouses are opening an ambitious, cross-country tour to highlight the $1.9 trillion coronavirus relief plan and its benefits. (AP Photo/Jacquelyn Martin)

President Joe Biden speaks about the COVID-19 relief package in the State Dining Room of the White House, Monday, March 15, 2021, in Washington. (AP Photo/Patrick Semansky)

Vice President Kamala Harris speaks during a visit with the Culinary Union at the Culinary Academy of Las Vegas, Monday March 15, 2021, in Las Vegas. (AP Photo/Jacquelyn Martin)

Vice President Kamala Harris and her husband, Doug Emhoff, wave as they board Air Force Two at Andrews Air Force Base, Md., Monday, March 15, 2021, en route to Las Vegas. President Joe Biden, Vice President Kamala Harris and their spouses are opening an ambitious, cross-country tour to highlight the $1.9 trillion coronavirus relief plan and its benefits. (AP Photo/Jacquelyn Martin)

First lady Jill Biden tours Samuel Smith Elementary School in Burlington, N,J., on Monday, March 15, 2021. (Anna Moneymaker/The New York Times via AP, Pool)

First lady Jill Biden speaks at a playground outside of the Samuel Smith Elementary School in Burlington, N,J., on Monday, March 15, 2021. (Anna Moneymaker/The New York Times via AP, Pool)

President Joe Biden stops to listen to a reporter's question after speaking about the COVID-19 relief package in the State Dining Room of the White House, Monday, March 15, 2021, in Washington. (AP Photo/Patrick Semansky)

Transportation Secretary Pete Buttigieg greets UPS driver Ricardo Adams during a tour of a UPS Facility in Landover, Md., Monday, March 15, 2021. Buttigieg was on hand to highlight COVID-19 vaccine distribution distribution efforts.(AP Photo/Carolyn Kaster)