Via DailyKos, US Sen. Maria Cantwell makes the argument for the public option, in summary:
(1) Health care costs must be brought under control or they will overrun the federal budget; (2) The public option is a critical tool for keeping health care costs down; (3) The public option will work because it (a) inserts more competition into the system and (b) delivers health care for the cost of health care.
As Jed Lewison notes, if we use reconciliation, we don’t need any Republican votes in the Senate to pass health care reform, but that doesn’t mean we shouldn’t be rubbing their faces in our arguments.