An Act To Expand the MaineCare Program To Cover All Citizens of the State- This bill establishes a single-payer health care program in the State that provides health care services for Maine residents. The bill directs the Department of Health and Human Services to consult with the Department of Labor and the Department of Professional and Financial Regulation, Bureau of Insurance to develop the program. The bill requires the State to implement the program in 4 phases, based on income, beginning in 2023 for those residents not already eligible for the MaineCare program. The bill also creates the MaineCare for All Implementation Task Force to advise the departments and make recommendations to fully implement the single-payer health care program. The program may not be implemented in 2023 without prior legislative approval.