Illinois governor Rod Blagojevich - aka "Blago" - and his chief of staff have been arrested for trying to sell Barack Obama's Senate seat. And, Barack Obama - or at least his advisor Valerie Jarrett - probably knew what he was doing; see the "SEIU Official" paragraph below. And, Obama may have lied about his recent conversations with Blago; see the first update. Uh-oh: Obama might be more worried...