I'm now hearing that the investigation may be inching closer to never-confirmed UN Ambassador John Bolton.
According to two sources, Bolton's former chief of staff, Fred Fleitz, was at least one of the sources of the classified information about Valerie Plame that flowed through the Bush administration and eventually made its way into Bob Novak's now infamous column.
After delving into Fleitz, I can safely report that he is, at a minimum, a very interesting character.