with the exception of females over 50. I would assume their allegiance has to do with identifying with Hillary as part of their generation's struggle for equal rights.
http://www.gallup.com/poll/107407/Obama-Surge-Fairly-BroadBased.aspx
The broadening of Obama's appeal for the nomination seen in Gallup's May 16-18 polling is fairly widespread, with the percentage favoring him increasing among most demographic categories of Democratic voters. However, as a result, certain groups that were already highly supportive of Obama for the nomination -- men, 18- to 29-year-olds, postgrads, and upper-income Democrats -- are now overwhelmingly in his camp. Obama is currently favored among these groups by a 2-to-1 margin, or better, over Clinton.
At the same time, support for Clinton among some of her traditionally stalwart support groups -- women, Easterners, whites, adults with no college education, and Hispanics -- has fallen below 50%.----------
Obama leads among BOTH Democratic and Republican highly-educated Americans
http://www.gallup.com/poll/28360/Examining-Barack-Obamas-Strong-Appeal-Highly-Educated-Americans.aspx(this polling was done when Obama was still relatively unknown, unlike the information above, which is from May 20.)
The interesting information is this: the more people learn about Obama, the higher his favorable rating becomes. The major difference between candidates isn't among Democrats, however.
The more highly educated the Republican or Independent voter, the more they support Obama. REGARDLESS of education level, INDEPENDENTS favor Obama. )
In contrast, Clinton's high negatives among all voters is widely known and has not changed very much over the course of this campaign. Tho I've seen higher figures, I'll be generous and note that she has a 50% negative perception among all voters.
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Is there any rational reason for super delegates to let her ruin this Democratic win? Every day that she continues to lie and create divisions among democrats is another day of harm to the Democratic Party.