They have gotten it right a couple times. But then, if you flipped a coin for every primary you'd probably get a couple right too. I made it a point a while back to go through the polls and compare them to the results to see which one was the most steadily reliable, and while most of them have essentially sucked, SUSA has, in my opinion, been the most reliable the most consistently.

The AP and other news outlets won't even report on PPP polls because they aren't considered reliable. From what I understand, it's because it's not really a polling business, that relies on income from clients and business for other types of polls. The polling companies that do that have to go to great lengths to ensure that their polls are reliable and trustworthy on a regular basis, otherwise no one would hire them.