Jon Ralston emails: "Sources confirm that the Senate panel has begun issuing subpoenas for documents, including to key players in the case involving U.S. Sen. John Ensign's scandal. The committee appears to be trying to connect the dots between Doug Hampton's post-Ensign tenure and what role the senator played in getting him jobs that allowed the former chief-of-staff to contact the Senate office and what those contacts involved. You may recall that Hampton retained emails of many of those events. Hampton has alleged that Ensign helped him knowingly violate a cooling-off period."