There hasn't been much coverage of the Iowa Federation of Labor outside of Blouin's endorsement, so I just thought I'd point out their takes on the congressional races:

1st District: Bruce Braley. This ought to cement his status as the frontrunner (if his fundraising and cash-on-hand advantage hadn't already.)

2nd District: No endorsement. Apparently there may be another person running for the nomination at district? That's the word on the street, anyway.3rd District: The Boz. Surprised?

4th District: Selden Spencer. This is probably more because of Latham's positions than Selden, but it gives a nice boost to his credibility right out of the gate.