Bribing Rev. Wright: How is Obama different from John Edwards?

Maybe I’m missing something, but if Obama’s pal Dr. Eric Whitaker did offer Rev. Wright $150,000 to stay silent for the duration of the campaign, as charged by Ed Klein, how exactly is that different from John Edwards’ pal Fred Baron giving Rielle Hunter money to stay out of the limelight for the duration of the campaign? It’s a good question asked by lawyer/blogger Ted Frank.