federal judge tuesday block obama administration rule extend mandatory overtime pay million salaried workers take effect imperil one outgo president signature achievements boost wag u.s. district judge amos mazzant sherman texas agree 21 state coalition business group include u.s. chamber commerce rule unlawful grant motion nationwide injunction rule issue labor department take effect dec. would double 47,500 maximum salary worker earn still eligible mandatory overtime pay new threshold would first significant change four decades expect touch nearly every sector u.s. economy great impact nonprofit group retail company hotels restaurants many management workers whose salaries new threshold state business group claim lawsuits file september late consolidate drastic increase salary threshold arbitrary tuesday mazzant appoint president barack obama rule federal law govern overtime allow labor department decide workers eligible base salary level alone fair labor standards act say employees exempt overtime perform executive administrative professional duties rule create essentially de facto salary-only test mazzant write 20-page rule state business group challenge rule applaud decision nevada attorney general adam paul laxalt say statement rule reinforce importance rule law constitutional government labor department say strongly disagree decision remain confident entire rule legal currently consider options department spokesman jason surbey say labor department appeal new orleans louisiana-based 5th u.s. circuit court appeal court stymie obama administration block obama executive action immigration 2015. case labor department could drop appeal republican president-elect donald trump take office january august trump tell website circa overtime rule example type burdensome business regulations would seek roll back president perhaps exempt small businesses delay implementation even rule survive legal challenge could upend legislation pass congress withdraw trump department labor u.s. chamber commerce official randy johnson say statement rule would costly disruptive businesses ross eisenbrey left-leaning economic policy institute support rule call decision extreme unsupportable also disappointment millions workers force work long hours extra compensation blow americans care deeply raise wag lessen inequality eisenbrey say statement case nevada v. u.s. department labor u.s. district court eastern district texas 16-cv-731 judge block obama rule extend overtime pay 4.2 million u.s. workers