As Scott Pruitt, the embattled head of the Environmental Protection Agency, prepares to testify before Congress on Thursday amid a series of spending and ethics investigations, an internal E.P.A. document indicates that he may blame his staff for many of the decisions that have put a cloud over his tenure at the agency.

The document, known as the “hot topics” list, appears to lay out talking points for Mr. Pruitt’s two sessions before the House of Representatives. It suggests that Mr. Pruitt is prepared to say that he now flies coach when traveling; that others were responsible for giving two close aides who used to work for him in Oklahoma substantial pay raises; and that E.P.A. officials who were reassigned or demoted after challenging his spending all had performance issues.