washington u.s. president donald trump expect sign measure early tuesday aim rescind major obama administration water regulation direct end government defense rule trump official brief plan say late friday trump expect direct environmental protection agency withdraw water unite state wotus rule expand number waterways federally protect clean water act rule finalize epa u.s. army corps engineer may 2015 block federal appeal court pending court challenge rule face intense opposition republicans congress farmers energy company critics contend rule vastly expand federal government authority could apply ditch small isolate body water epa president barack obama say rule protect water next rivers lakes tributaries science show impact downstream water white house spokeswoman comment friday trump also expect issue environmental executive order early next week include reversal obama administration clean power plant rule instruct interior department bureau land management lift ban new coal mine lease federal land epa administrator scott pruitt tell wall street journal last week plan quickly withdraw clean power plant wotus rule simple reason need happen court seriously call question legality rule pruitt tell newspaper withdraw water power plant rule take time meet regulatory requirements likely face court challenge democratic state attorneys general environmental group last month u.s. supreme court agree resolve dispute court handle challenge water regulation justices say would hear appeal national association manufacturers cincinnati-based federal appeal court rule give jurisdiction review challenge clean water act regulation industry group want challenge rule hear district court dozens agricultural group state municipalities sue block rule challengers contend agencies change improperly expand federal regulatory power trump order reversal obama water regulation rule official