The Washington state Health Care Authority said it plans to ask private insurers to help it create a coverage option that anyone in the state could buy for about $100 a month. The agency will issue a request for proposals to the insurers asking how much they would charge for a benefit package outlined by the agency. Based on the bids, the agency would determine what premium insurers may charge for the package. Insurers who figure the premium would not cover their claims and administrative expenses could choose not to participate, the Puget Sound Business Journal reports.