Retirement Fever has hit Arkansas:

Arkansas Rep. Marion Berry is expected to announce his retirement tomorrow morning, according to three sources briefed on the decision.

Berry will become the sixth Democrat in a competitive seat to leave in the last two months but the first to announce his retirement since the party’s special election loss in Massachusetts last Tuesday.

Plus this, also from WaPo’s The Fix:

The next two weeks could well serve as a tipping point in the battle for House control. Today there appear to be too few open Democratic seats for Republican to win the 40 seats they need to take control. But, another handful of retirements in swing districts could imperil Democrats hold on the chamber.

From the Dirty Tricks Department, I wouldn’t be surprised if soon Obama’s EPA puts Blue Dogs on the endangered species list.