obama administration maneuver pay health insurers billions dollars government owe affordable care act move could circumvent congress help shore president signature legislative achievement leave office.justice department officials privately tell several health plan sue unpaid money eager negotiate broad settlement could end offer payments 175 health plan sell coverage aca marketplaces accord insurance executives lawyers familiar talks.the payments likely would draw obscure treasury department fund intend cover federal legal claim executives lawyers say approach would get around recent congressional ban use health human service money pay insurers.read wapo obscure fund billions use shore obamacare