The one real poll from Rhode Island showed Clinton up 15, over a week before the primary. She ended up winning by 18 points.
I could have sworn there was a lot of hype about RI possibly being very close after a poll was released. I'm probably mistaken.
The initial exit poll had it very surprisingly close.
Yeah. The polling did not show Obama leading or tieing, but they did create a feeling that he was having momentum and that Clinton was sinking fast. Then the exit polls confirmed that and made the eventual Clinton victory seem like more of a surprise than it should have been.