we're not intimidated. >> reporter: he would replace obama care with a variety of popular gop alternatives. tax credits for private health insurance. black aiding medicaid back to the states. allowing people to shop for insurance across state lines and save money. he would pay for it with medicaid savings, insurance tax reform and by eliminating trillions of dollars in taxes. louisiana governor bobby jindal trashed walker's plan today saying it embraces cradle to grave government held care coverage by tying it to medicare age instead of income. marco rubio, meanwhile, laid out his health care priorities in a "wall street journal" yesterday. he was at the iowa state fair today where it was raining and it shortened his appearance. >> we have to repeal and replace the health care law. we have to repeal it and replace it -- >> reporter: the problem for republicans is that they've tried more than 50 times to repeal the aford about care act in congress and had majorities in both houses at times and have been unable to do so.