Coronavirus Relief for Seniors and People with Disabilities Act of 2020 This bill expands support programs for older adults and individuals with disabilities during the COVID-19 (i.e., coronavirus disease 2019) public health emergency. Specifically, the bill provides supplemental appropriations for (1) the Centers for Medicare & Medicaid Services for quality improvement and laboratory certification activities; (2) the Administration on Community Living to expand nutrition and other programs for older adults; and (3) the Department of Agriculture to provide food packages to low-income, elderly individuals. The funds are designated as an emergency requirement and are therefore exempt from discretionary funding limits and other budget enforcement rules. In addition, the bill (1) temporarily requires state Medicaid programs to provide Medicare cost-sharing assistance to certain individuals who qualify for, or are enrolled in, the low-income subsidy program under the Medicare prescription drug benefit; and (2) authorizes a grant program to support Medicaid home- and community-based services during the public health emergency. The bill also allows states to transfer funds, in greater amounts and without prior approval, between congregate and home-delivered nutrition programs, The Department of Health and Human Services must prioritize home-delivered nutrition services for individuals who are unable to obtain nutrition as a result of the emergency, such as those under quarantine, just as it prioritizes delivery to individuals who are homebound by illness.