u.s. president donald trump administration begin roll back obama-era environmental regulations aggressive way soon next week head environmental protection agency say saturday add understand americans want see agency eliminate completely think regulations near-term need roll back aggressive way think maybe next week may hear epa administrator scott pruitt tell conservative political action summit washington dc pruitt add epa focus combat climate change former president barack obama cost job prevent economic growth lead many americans want see epa eliminate completely think justify say think people across country look epa much like look irs hope able change that pruitt confirm epa head last week appointment trigger uproar among democratic lawmakers environmental advocate worry gut agency re-open doors heavy industrial pollution sue epa dozen time state top attorney repeatedly cast doubt science climate change rise head epa also cheer many republicans business interest expect cut back red tape believe hamper economy trump campaign promise slash regulation revive oil gas drill coal mine industries pruitt mention three rule usher obama could meet chop block early water u.s. rule outline waterways federal protections clean power plan require state cut carbon emissions u.s. methane rule limit emissions oil gas installations federal land trump official tell reuters late friday president expect sign measure early tuesday aim rescind water u.s. rule pruitt say comment cpac summit rule make puddle dry creek bed across country subject jurisdiction washington dc go change also suggest longer-term structural change store epa long-term ask question agency partner state affect budget effect structure something work diligently pruitt say like trump say cut regulation could do way harm water air quality aggressive cut obama-era green rule start soon epa head