Chris Dodd admits to bribery?

Allow me to stipulate that at one time I thought Chris Dodd was a pretty good senator, and might even make an acceptable presidential candidate (a sort of an unglamorous compromise figure, but anyway)...

Now, however, I think he's a totally unprincipled lobbyist who should be run outta town on a rail, figuratively speaking.

Still, the online petition to the White House calling for an investigation into Dodd for, in effect admitting to bribery, has me scratching my head a little. Investigating? A former senator? For Bribery? Might as well investigate all of 'em, because as near as I can figure out, this is just S.O.P. in D.C.