Thanks for any help. I've been looking for info and haven't been real successful.
The laws of each individual state determine whether delegates chosen in their primaries are required to vote for the candidate they were pledged to, in the first ballot (or I think in rare instances, beyond the first ballot). The FEC website might have that information.
On the math of nomination, I think it's March when enough primaries are completed so a candidate who sweeps the field to that point will have committed delegates for a guaranteed majority. However, it's not strictly a matter of numbers. If one candidate -- presumably Dean -- has won 80% of the delegates chosen to that point and holds 60% of the delegates necessary for the nomination, he'll pick up enough to win among those who are afraid to cut their own political throats by not supporting the "man who would be President."
When, not if, it reaches that point, the only change that could derail Dean would be Hillary jumping into the race in March. This is going to be a nasty election with a solid win for Bush if Dean is the nominee. It is going to be a very nasty election, more like a mud-wrestling match, if Hillary! jumps in. But Bush will still have a solid win. IMHO.
John / Billybob