Well in Missouri at the state caucuses to determine the state delegates, they swarmed the meetings, fired all the chairman and put their own people as county chairman, and are trying to get enough state delegates to unbind the primary results so that they can elect national delegates who are Ron Paul supporters. The county platforms are pretty amusing now because many of them were re-written.
Chances of defeating McCain.....very low. But they same thing happened in Alaska...to an extend anyway but I think they only got about 40% of state delegates so they couldn't rail road everyone there.