energy and commerce committee cast jackson as ubeer regulator, oblivious to impact of her policy in time of stubbornly high unemployment. but the witness gave as good as she got, whether defending the clean air act. >> 40-year history shouldn't be ignored just because of doomsday scenarios by those who want to stop public health protections in this room. >> reporter: or invoking last year's deadly b.p. oil spill to rebut republican call for regulation. >> not every deregulatory push works out well for the country or the environment in 2009, a company called another federal agency's rule an unnecessary burden. that agency with us mineral management service and that company was transocean. >> reporter: g.o.p. members seized on president obama rejection this month of the epa proposal for ozone standards. >> you may want to carry out your agenda, even the the president acknowledged you have gone too far. >> on the house floor, lawmakers debated a bill to subject epa rules to new enter