The editors of RedState say that liberal blogger Mike Rogers may have committed extortion. “Arguably, Mike Rogers extorted Larry Craig by threatening to ‘out’ him if he did not vote against the confirmation of Samuel Alito to the Supreme Court. For this, he deserves the condemnation of all morally responsible citizens of this country and, at least, an investigation by the federal government to look for possible criminal wrongdoing.”
Eugene Volokh and Jim Lindgren looked at the legal issues back in 2006, without coming to any firm conclusion.