Lowering Prescription Drug Prices for America's Seniors and Families Act of 2020 This bill makes a series of changes to requirements relating to prescription drug prices. Among other changes, the bill requires the Centers for Medicare & Medicaid Services to negotiate the prices of certain covered drugs under the Medicare prescription drug benefit, allows individuals to import certain drugs from Canada to fill personal prescriptions, and establishes specific enforcement actions against patent infringement agreements that involve generic drug manufacturers and have anticompetitive effects.