AP Interview: EPA head removes Trump-era science advisers

Vice President Kamala Harris, right, administers the ceremonial swearing-in of Michael Regan as EPA administrator in the Vice President's Ceremonial Office at the Eisenhower Executive Office Building on the White House complex in Washington, Wednesday, March 17, 2021. With EPA Administrator Regan are his wife Melvina Thomas Regan, son Matthew Silas, 7. (AP Photo/Manuel Balce Ceneta)

Vice President Kamala Harris, right, watches EPA administrator Michael Regan gives his wife Melvina Thomas Regan and son Matthew Silas, 7 a hug, during a ceremonial swearing-in ceremony in the Vice President's Ceremonial Office at the Eisenhower Executive Office Building on the White House complex in Washington, Wednesday, March 17, 2021. (AP Photo/Manuel Balce Ceneta)

FILE - In this Feb. 3, 2021, file photo, Environmental Protection Agency administrator Michael Regan, speaks during his confirmation hearing before the Senate Environment and Public Works committee on Capitol Hill in Washington. Reganis taking steps to restore what he calls “scientific integrity” at the EPA. And one way Regan is trying to do that is by reversing Trump administration actions that sidelined many academic scientists as advisers in favor of industry figures.(Caroline Brehman/Pool via AP)