Disband it and start over. It clearly made fundamental mistakes. We're living with them right now.
Disband it. Reappoint it. Make everything transparent: the meeting minutes, the agendas of the meetings, the conflicts of interest.
If I publish a paper in the lowest-grade medical journal, I have to disclose all my conflicts of interest. These people are making the highest stakes decisions in the country right now, and they haven't fully disclosed their conflicts of interest. Something's wrong there.