Spitzer Timing: a Ploy to Help HRC?

He could have resigned Monday. No, he waited until today, the day after Obama walks away with the Mississippi primary. His delay kept media speculation at fever pitch and his story at the top of the news, bumping Obama's latest victory to a footnote, denying the Illinois Senator a chance to show "momentum." He is a Clinton superdelegate, after all. Coincidence? Or a ploy to help Hillary?