MD Health exchange to offer retroactive coverage [sausage making is exposed and ugly] "...Republicans have called for a special committee with subpoena powers. And some Democrats have said an investigation would be launched once the site is running properly...."That's something that will be done, but right now we don't want to divert attention" away from problem solving, Brown said. "We are making progress, but we're not satisfied until we enroll more and more Marylanders.".............