http://query.nytimes.com/gst/fullpage.html?res=9E0CE1DA133FF933A25757C0A964958260&sec=&spon=&pagewanted=allThe 1992 Democratic primary was different than, but as interesting as, and has some parallels with the current primary. You can read what you want into this little bit of history, and both sides will, but it's interesting in its own right -- both for those DUers who weren't politically active then and for those who have forgotten how it went. And yes, I'm crediting Drudge because that's where I saw it -- so spare me your tsk-tsks.
(snip) THE 1992 CAMPAIGN: The Front-Runner; Like Voters, Superdelegates Have Doubts About Clinton
By R. W. APPLE JR.,
Published: April 10, 1992
Even though Bill Clinton won four primaries on Tuesday, even though Paul E. Tsongas announced today that he would not re-enter the race for the Democratic Presidential nomination, even though many of them concede there is probably no stopping Mr. Clinton now, dozens of Democratic senators and representatives remain reluctant to endorse him....
Representative Dennis E. Eckart of Ohio, more willing perhaps to speak on the record than many of his colleagues because he has announced his retirement from the House, said that he and some of his colleagues had constituted an informal "Missouri caucus -- a show-me caucus" -- and would do nothing for now.
"The voters haven't embraced Clinton, so I don't see any reason why I should endorse him," Mr. Eckart said. "Look at the exit polls. People have terrible doubts about this guy, and we're talking about Democrats...."
Ronald H. Brown, the party chairman, has been phoning uncommitted delegates and others, "discussing the lay of the political territory," as he described it. He denied putting pressure on anybody, but others in the party said he was sending a subtle but clear message that it was time to halt the squabbling.