Not all that rare, just never reported. I have a nephew and a niece that were hard core liberals to the point of canvasing for Obama during a damn blizzard. I talked to both at a wedding recently and they have changed their viewpoint on just about everything. Seems to coincide with both of them graduating college, finally getting a job, looking at their paycheck and figuring out just how much government takes out of their checks for taxes and insurance. Amazing how when dumb asses start having to pay for the things they want, they all of a sudden become smarter and conservatives.