Could you summarize the central argument of the text, including the central metaphor used to illustrate the point?: Voting for Republicans to show your displeasure with Obama for the bad economy — an economy we all know crashed under the reign of Bush policies — seems to me analogous to this "medical model:"
Imagine that in 2001, after your doctor's eight-year-long treatment has brought you to glowing good health and he retires, you get a new physician.
And this one changes all your prescriptions, tries techniques you'd never dreamed of. And by 2008 you find yourself lying slumped against the emergency room door. Then while you still have some life in you, a practitioner who went to the same medical school your old doc did arrives on the scene. But after this doc's treatments have you up and walking — though you're not yet your old self, not cured of the worst illness of your lifetime �— you are just plain angry with ill health. So, in frustration and not exactly remembering how much sicker you were less than two years before, you decide to go back on that failed doc's prescriptions.
Taking this kind of decisive action might possibly make you feel a little better in the moment. But there is every reason to believe in a short while you will end up as deathly sick as you were in 2008, ill with all the same symptoms you were suffering when you first had that terrible collapse.
This prompt doesn't seem malicious.