Environmental Protection Agency Administrator Scott Pruitt may try to avoid addressing accusations about his spending, ethics, and travel during his much-anticipated testimony Thursday before Congress, but even his conservative allies want answers.

Pruitt’s opening statement for the first of two House hearings, posted online Wednesday, focuses on policy, with his usual message about returning the EPA to a “back to basics agenda,” emphasizing his cleanup of Superfund sites, combating lead in drinking water, and giving more power to states.