bernie sanders know socialize medicine exchange sunday fail press explain single-payer health care system reject vermont california two staunchly democratic state cnn host jake tapper say california vermont cobalt blue state ask single-payer could affordable national level reject system state level expense single-payer fail pass california vermont lawmakers unable figure fund system voters colorado also reject single-payer last year.sanders push back tapper cite study see say single-payer would save average family significant sum money look canada single-payer health care system per capita cost far far less unite state sanders say look uk look countries around world different approach national health care system every instance spend substantially less per capita pay unite state read wfb socialist bernie sanders explain single payer blue state reject video