Andrea Helmer was interested in Barack Obama until she heard sound bites of his fiery pastor's sermons. Last week, she volunteered for Hillary Clinton's campaign in Indiana.
"As things came out regarding some of the things his pastor has said, I got concerned," said Helmer, a 36-year-old respiratory therapist and mother of two in Evansville, Indiana.
Interviews with dozens of Democrats in this overwhelmingly white region -- where voters will go to the polls in the May 20 primary -- suggest residual concerns over the controversy involving Obama's former pastor, Reverend Jeremiah Wright.
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