Next up, Senator Ed Markey (Zip shudders uncontrollably).

Via WaPo:

Former Massachusetts Republican senator Scott Brown will not run in the special election for outgoing Democratic Sen. John Kerry’s seat, according to a Republican source familiar with his plans. Brown’s decision means Kerry’s seat is very likely to remain in Democratic hands.

Brown’s decision leaves Republicans without a top candidate for the seat held by Kerry, who was confirmed by the Senate to be the next secretary of state earlier this week. On the Democratic side, longtime Rep. Ed Markey is the frontrunner, but he faces a challenge from fellow Democratic  Rep. Stephen Lynch, who is much more conservative.