From The Fix's Friday Line:
[A]s more and more Republican members of Congress head into retirement, it makes it far easier for other Congressman only considering retirement to walk away. It's a lot easier to be the 18th man (or woman) off the ship than the second or third. Among those to keep an eye on in the coming months are Reps. Mike Castle (Del.), Bill Young (Fla.), Jim Walsh (N.Y.) and Tom Davis (Va.). All could face far tougher re-election fights than they are used to and might decide retirement is the more attractive option.