Oprah's support of Obama drives away some women.

Politics: Her bread and butter support has always been the middle age housewife segment in my mind and they were the least likely to be turned off.

The Oprah Winfrey endorsement might have generated a lot of press for Barack Obama, but not a lot of impress, particularly among younger women, a poll released Wednesday shows. A Lifetime/Zogby poll of women shows that of those 18 to 29, almost a third said they were less likely to support the Illinois senator because of the Oprah support. Older women, over 65, also showed they were ruffled by Ms. Winfrey stepping "out of her pew," as the daytime diva herself described it. About 17 percent of older women said the endorsement made them less likely to support Mr. Obama. Among other age groups, those who disliked the endorsement were offset by an equal amount who said they were more inclined to look more favorably at Mr. Obama because of it.