Not even Robert Byrd's seat is safe

by Dave Weigel

The invaluable Reid Wilson sees the National Republican Senatorial Committee starting to dig into the records of Gov. Joe Manchin (D-W.V.). When the governor entered the race for the late Robert Byrd's Senate seat, some wags wrote the race off. But the NRSC went after Manchin for a waffling answer (on Fox News) on whether he supported the administration's challenge to Arizona's immigration law, and now it's attacking on this:

The NRSC has requested a series of documents from...