Rhode Island Gov. Lincoln Chafee's decision to switch from independent to Democrat effectively handed Democrats their 20th governorship.
It also means they likely have one less seat to contest - at least the way things look now.
The dirty little secret about Chafee's party switch is that it may not help Chafee much, but it is very likely to help his new party. He's set to face a primary with state Treasurer Gina Raimondo, Providence Mayor Angel Taveras, or both, and assuming someone not named Chafee wins - a strong possibility given the governor's terrible numbers - Democrats will be heavy favorites to hold the seat.