Liz Bowman, spokesperson for the Environmental Protection Agency and its embattled leader Scott Pruitt, is exiting her post on May 11.
She will join the staff of Republican Senator Joni Ernst of Iowa.
Bowman joined EPA from the American Chemistry Council, where she was director of issues and advocacy communications.
She also was VP at HDMK and senior communications associate at Pew Charitable Trusts.
In leaving the EPA, Bowman expressed thanks for the opportunity to serve President Trump and Pruitt.
“Being a member of the EPA team has allowed me to further my skills, learn from my mistakes, and make lifelong friendships,” she told Politico.
The New York Times reported April 18 that Pruitt faces 11 federal investigations concerning travel expenses, dismissal of EPA scientists, closes ties with industry lobbyists, pay raises for aides, security outlays and office upgrades, including the installation of a $43K secure phone booth.
A Politico/Morning Consult poll found that 53 percent of respondents believe Pruitt should be removed from office,, while 12 percent say he should remain on the job.
Nearly half (48 percent) of the Republicans polled say Pruitt has acted inappropriately as EPA administrator, though only 38 percent agree that he should leave.