Sen. Roger Marshall, R-Kan., stretches during the confirmation hearings of Vivek Murthy, nominee for U.S. Surgeon General and Rachel Levine, nominee for Assistant Secretary in the Department of Health and Human Services, before the Senate Health, Education, Labor, and Pensions committee in Washington, U.S. February 25, 2021. Caroline Brehman/Pool via REUTERS

U.S. Senator Mitt Romney (R-UT) attends a Senate Health, Education, Labor, and Pensions Committee hearing for public health service nominees Rachel Levine and Vivek Murthy on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

Rachel Levine fist bumps Sen. Richard Burr, R-N.C., at the end of her confirmation hearing to be Assistant Secretary, both of the Department of Health and Human Services before the Senate Health, Education, Labor, and Pensions committee in Washington, U.S. February 25, 2021. Caroline Brehman/Pool via REUTERS

Sen. Tommy Tuberville, R-Ala., speaks during the confirmation hearings of Vivek Murthy and Rachel Levine before the Senate Health, Education, Labor, and Pensions committee in Washington, U.S. February 25, 2021. Caroline Brehman/Pool via REUTERS

Vivek Murthy fist bumps Sen. Richard Burr, R-N.C., at the end of his confirmation hearing to be Medical Director in the Regular Corps of the Public Health Service and to be Surgeon General of the Public Health Service before the Senate Health, Education, Labor, and Pensions committee in Washington, U.S. February 25, 2021. Caroline Brehman/Pool via REUTERS

Rachel Levine, nominated to be an assistant secretary at the Department of Health and Human Services, is greeted by U.S. Senator Richard Burr (R-NC) at a Senate Health, Education, Labor, and Pensions Committee nomination hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

Vivek Murthy holds the baby socks of his two children for good luck as he stands next to his wife, Alice Chen at the end of his confirmation hearing to be Medical Director in the Regular Corps of the Public Health Service and to be Surgeon General of the Public Health Service before the Senate Health, Education, Labor, and Pensions committee in Washington, U.S. February 25, 2021. Caroline Brehman/Pool via REUTERS

U.S. Senator Maggie Hassan (D-NH) questions witnesses during a Senate Health, Education, Labor, and Pensions Committee nomination hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

U.S. Senator Mitt Romney (R-UT) attends a Senate Health, Education, Labor, and Pensions Committee nomination hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

U.S. Senate Health, Education, Labor, and Pensions Committee Ranking Member Richard Burr (R-NC) adjusts his face mask during a Senate Health, Education, Labor, and Pensions Committee hearing on pending public health service nominations on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

Vivek Murthy, nominated to be Medical Director in the Regular Corps of the Public Health Service, and to be Surgeon General of the Public Health Service, testifies during a Senate Health, Education, Labor, and Pensions Committee hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

Sen. Mitt Romney, R-Utah, attends the confirmation hearings of Vivek Murthy and Rachel Levine before the Senate Health, Education, Labor, and Pensions committee in Washington, U.S. February 25, 2021. Caroline Brehman/Pool via REUTERS

U.S. Senator Tommy Tuberville (R-AL) attends a Senate Health, Education, Labor, and Pensions Committee nomination hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

Rachel Levine appears during her confirmation hearing to be Assistant Secretary, both of the Department of Health and Human Services before the Senate Health, Education, Labor, and Pensions committee in Washington, U.S. February 25, 2021. Caroline Brehman/Pool via REUTERS

U.S. Senator Chris Murphy (D-CT) speaks during a Senate Health, Education, Labor, and Pensions Committee nomination hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

U.S. Senator Chris Murphy (D-CT) speaks next to Ranking Member Sen. Richard Burr (R-NC) during a Senate Health, Education, Labor, and Pensions Committee nomination hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

U.S. Senator Chris Murphy (D-CT) speaks next to Ranking Member Sen. Richard Burr (R-NC) during a Senate Health, Education, Labor, and Pensions Committee nomination hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

U.S. Senator Chris Murphy (D-CT) speaks next to Ranking Member Sen. Richard Burr (R-NC) during a Senate Health, Education, Labor, and Pensions Committee nomination hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

Vivek Murthy speaks during his confirmation hearing to be Medical Director in the Regular Corps of the Public Health Service and to be Surgeon General of the Public Health Service before the Senate Health, Education, Labor, and Pensions committee in Washington, U.S. February 25, 2021. Caroline Brehman/Pool via REUTERS

U.S. Senator Susan Collins (R-ME) attends a Senate Health, Education, Labor, and Pensions Committee nomination hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

U.S. Senator Rand Paul (R-KY) is seen on a television monitor as he questions public health service nominees Rachel Levine and Vivek Murthy at a Senate Health, Education, Labor, and Pensions Committee nomination hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

Sen. Tim Kaine, D-Va. and Sen. Richard Burr, R-N.C., speak during the confirmation hearings of Vivek Murthy and Rachel Levine before the Senate Health, Education, Labor, and Pensions committee in Washington, U.S. February 25, 2021. Caroline Brehman/Pool via REUTERS

Sen. Tim Kaine, D-Va. and Sen. Richard Burr, R-N.C., speak during the confirmation hearings of Vivek Murthy and Rachel Levine before the Senate Health, Education, Labor, and Pensions committee in Washington, U.S. February 25, 2021. Caroline Brehman/Pool via REUTERS

A committee staff member carrries a nameplate of U.S. Senator Mitt Romney (R-UT) during a Senate Health, Education, Labor, and Pensions Committee nomination hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

U.S. Senator Rand Paul (R-KY) reads a ducument during a heated discussion on transgender as he questions public health service nominees Rachel Levine and Vivek Murthy at a Senate Health, Education, Labor, and Pensions Committee nomination hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

Vivek Murthy adjusts his mask during his confirmation hearing to be Medical Director in the Regular Corps of the Public Health Service and to be Surgeon General of the Public Health Service before the Senate Health, Education, Labor, and Pensions committee in Washington, U.S. February 25, 2021. Caroline Brehman/Pool via REUTERS

Sen. Tim Kaine, D-Va., speaks during the confirmation hearings of Vivek Murthy and Rachel Levine before the Senate Health, Education, Labor, and Pensions committee in Washington, U.S. February 25, 2021. Caroline Brehman/Pool via REUTERS

Sen. Susan Collins, R-Maine, questions Rachel Levine during her confirmation hearing to be Assistant Secretary, both of the Department of Health and Human Services before the Senate Health, Education, Labor, and Pensions committee in Washington, U.S. February 25, 2021. Caroline Brehman/Pool via REUTERS

A committee staff member carrries a nameplate of U.S. Senator Mitt Romney (R-UT) during a Senate Health, Education, Labor, and Pensions Committee nomination hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

Sen. Tim Kaine, D-Va., points to a colleague as he arrives to the confirmation hearings of Vivek Murthy and Rachel Levine before the Senate Health, Education, Labor, and Pensions committee in Washington, U.S. February 25, 2021. Caroline Brehman/Pool via REUTERS

U.S. Senator Susan Collins (R-ME) speaks during a Senate Health, Education, Labor, and Pensions Committee nomination hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

U.S. Senator Rand Paul (R-KY) speaks during a Senate Health, Education, Labor, and Pensions Committee nomination hearing as Ranking Member Sen. Richard Burr (R-NC) listens on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

U.S. Senator Susan Collins (R-ME) attends a Senate Health, Education, Labor, and Pensions Committee nomination hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

Rachel Levine, nominated to be an assistant secretary at the Department of Health and Human Services, holds her face mask as she testifies during a Senate Health, Education, Labor, and Pensions Committee hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

Vivek Murthy, nominated to be Medical Director in the Regular Corps of the Public Health Service, and to be Surgeon General of the Public Health Service, testifies during a Senate Health, Education, Labor, and Pensions Committee hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

Vivek Murthy speaks during his confirmation hearing to be Medical Director in the Regular Corps of the Public Health Service and to be Surgeon General of the Public Health Service before the Senate Health, Education, Labor, and Pensions committee in Washington, U.S. February 25, 2021. Caroline Brehman/Pool via REUTERS

Rachel Levine speaks during her confirmation hearing to be Assistant Secretary, both of the Department of Health and Human Services before the Senate Health, Education, Labor, and Pensions committee in Washington, U.S. February 25, 2021. Caroline Brehman/Pool via REUTERS

Rachel Levine, nominated to be an assistant secretary at the Department of Health and Human Services, testifies during a Senate Health, Education, Labor, and Pensions Committee hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

Rachel Levine, nominated to be an assistant secretary at the Department of Health and Human Services, testifies next to Vivek Murthy, nominated to be Medical Director in the Regular Corps of the Public Health Service, and to be Surgeon General of the Public Health Service, during a Senate Health, Education, Labor, and Pensions Committee hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

Rachel Levine, nominated to be an assistant secretary at the Department of Health and Human Services, testifies during a Senate Health, Education, Labor, and Pensions Committee hearing with few senators participating in person on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

U.S. Senate Health, Education, Labor, and Pensions Committee Ranking Member Richard Burr (R-NC) attends a Senate Health, Education, Labor, and Pensions Committee hearing on pending public health service nominations on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

Rachel Levine, nominated to be an assistant secretary at the Department of Health and Human Services, testifies during a Senate Health, Education, Labor, and Pensions Committee hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

Vivek Murthy, nominated to be Medical Director in the Regular Corps of the Public Health Service, and to be Surgeon General of the Public Health Service, is greeted by U.S. Senator Richard Burr (R-NC) prior to testifying during a Senate Health, Education, Labor, and Pensions Committee hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

Vivek Murthy and Rachel Levine pose for a cell phone photo before their nomination hearing before the Senate Health, Education, Labor, and Pensions committee in Washington, U.S. February 25, 2021. Caroline Brehman/Pool via REUTERS

Vivek Murthy and Rachel Levine talk with Sen. Richard Burr, R-N.C., before their confirmation hearing before the Senate Health, Education, Labor, and Pensions committee in Washington, U.S. February 25, 2021. Caroline Brehman/Pool via REUTERS

Vivek Murthy speaks during his confirmation hearing to be Medical Director in the Regular Corps of the Public Health Service and to be Surgeon General of the Public Health Service before the Senate Health, Education, Labor, and Pensions committee in Washington, U.S. February 25, 2021. Caroline Brehman/Pool via REUTERS

Sen. Richard Burr, R-N.C., talks with a staffer during the confirmation hearings of Vivek Murthy and Rachel Levine before the Senate Health, Education, Labor, and Pensions committee in Washington, U.S. February 25, 2021. Caroline Brehman/Pool via REUTERS

Vivek Murthy, nominated to be Medical Director in the Regular Corps of the Public Health Service, and to be Surgeon General of the Public Health Service, is seated to testify during a Senate Health, Education, Labor, and Pensions Committee hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

Rachel Leland Levine, nominated to be an assistant secretary at the Department of Health and Human Services, testifies during a Senate Health, Education, Labor, and Pensions Committee hearing on Capitol Hill in Washington, U.S., February 24, 2021. REUTERS/Tom Brenner/Pool

U.S. Senator Richard Burr (R-NC), ranking member of the Senate Health, Education, Labor and Pensions Committee, greets Xavier Becerra, secretary of Health and Human Services (HHS) nominee for U.S. President Joe Biden, following a confirmation hearing in Washington, D.C., U.S., February 23, 2021. Sarah Silbiger/Pool via REUTERS

U.S. Senator Richard Burr (R-NC), ranking member of the Senate Health, Education, Labor and Pensions Committee, greets Xavier Becerra, secretary of Health and Human Services (HHS) nominee for U.S. President Joe Biden, following a confirmation hearing in Washington, D.C., U.S., February 23, 2021. Sarah Silbiger/Pool via REUTERS

Sen. Roger Marshall (R-KS) questions Xavier Becerra, U.S. President Joe Biden's nominee for Secretary of Health and Human Services, during his confirmation hearing before the Senate Health, Education, Labor and Pensions Committee at the U.S. Capitol in Washington, U.S., February 23, 2021. Sarah Silbiger/Pool via REUTERS

Sen. Jerry Moran (R-KS) questions Xavier Becerra, U.S. President Joe Biden's nominee for Secretary of Health and Human Services, during his confirmation hearing before the Senate Health, Education, Labor and Pensions Committee at the U.S. Capitol in Washington, U.S., February 23, 2021. Sarah Silbiger/Pool via REUTERS

U.S. Senator Richard Burr (R-NC), ranking member of the Senate Health, Education, Labor and Pensions Committee speaks during a confirmation hearing for Xavier Becerra, secretary of Health and Human Services (HHS) nominee for U.S. President Joe Biden, in Washington, D.C., U.S., February 23, 2021. Sarah Silbiger/Pool via REUTERS

U.S. Senator Richard Burr (R-NC), ranking member of the Senate Health, Education, Labor and Pensions Committee questions Xavier Becerra, U.S. President Joe Biden's nominee for Secretary of Health and Human Services, during his confirmation hearing at the U.S. Capitol in Washington, U.S., February 23, 2021. Leigh Vogel/Pool via REUTERS

Xavier Becerra, U.S. President Joe Biden's nominee for Secretary of Health and Human Services, kisses his wife Carolina Reyes after testifying at his confirmation hearing before the Senate Health, Education, Labor and Pensions Committee at the U.S. Capitol in Washington, U.S., February 23, 2021. Leigh Vogel/Pool via REUTERS

Xavier Becerra, U.S. President Joe Biden's nominee for Secretary of Health and Human Services, reacts after testifying at his confirmation hearing before the Senate Health, Education, Labor and Pensions Committee at the U.S. Capitol in Washington, U.S., February 23, 2021. Leigh Vogel/Pool via REUTERS

Sen. Tommy Tuberville (R-AL) questions Xavier Becerra, U.S. President Joe Biden's nominee for Secretary of Health and Human Services, during his confirmation hearing before the Senate Health, Education, Labor and Pensions Committee at the U.S. Capitol in Washington, U.S., February 23, 2021. Leigh Vogel/Pool via REUTERS

Sen. Tommy Tuberville (R-AL) questions Xavier Becerra, U.S. President Joe Biden's nominee for Secretary of Health and Human Services, during his confirmation hearing before the Senate Health, Education, Labor and Pensions Committee at the U.S. Capitol in Washington, U.S., February 23, 2021. Leigh Vogel/Pool via REUTERS

Sen. Roger Marshall (R-KS) questions Xavier Becerra, U.S. President Joe Biden's nominee for Secretary of Health and Human Services, during his confirmation hearing before the Senate Health, Education, Labor and Pensions Committee at the U.S. Capitol in Washington, U.S., February 23, 2021. Leigh Vogel/Pool via REUTERS