How firmly committed are his delegates?
Kerry now has a majority of delegates to the Dem Convention committed to vote for him. HOWEVER, he does not have a majority of delegates who are required to vote for him. Some state laws require elected delegates to vote as pledged on at least the first ballot, other laws for two ballots.
But if Kerry is reduced to his mandatory delegates, he will lose on the first ballot, and thereafter fade into the ashcan of history as someone else is nominated. (After three ballots, ALL delegates will be freed to vote as they choose, regardless of how they were elected.)
Important question you asked.
Congressman Billybob
Delegates selected in Primary elections and caucuses are required by law to vote for their candidate on the first ballot. If no candidate wins on the first ballot, then they can do as they please.
Many delegates serve many times for several different candidates. A Delegate that did not do what his candidate told him or her to do on any second or third ballots, would never be a delegate again. If they were a local offical in the Democratic party .. .they would have used to have been a party official.
Even if a delegate switched to hillary and she won it is very unlikely that person would be a Hillary Delgate in 2008. If you would double cross JFing K you would double cross Hillary. Breaking ranks gets a delegate nothing but trouble.
But in any event Kerry has enough delegates won in the primaries to win on the first ballot.
Kerry is the very dertermined and very nasty person. If you think he would drop out to give it to Hillary, you no doubt thought that Teddy Kennedy would rush to supprt Jimmy Carter after Carter easily defeated Kennedy in the 1980 primaries.
If you think Kennedy would let Kerry drop out for Hillary you have been smoking the good stuff.
Remember Bill Clinton was in third Place behind both Bush (in first) and Perot (in second) in June of 1992. There is no way that Kerry will drop out.