|Second Hampden Hampshire - Obama 59.0%-39.2%, Michael Knapik (R) unopposed
I have no idea why Democrats don't run a candidate in such an Obama district. Maybe Knapik is unbeatable?
There are 9 districts that are more Romney. Republicans ran candidates in five of them and only finished within 30 points in one.
Norfolk, Bristol & Middlesex - Obama 52.3%-46.2%, Richard Ross (R) unopposed
This district is drawn in a straight line. I'm not sure why it was drawn this way since none of the towns are very Democratic.
First Plymouth & Bristol - Obama 52.1%-46.5%, No Republican
This district isn't far from Ross or Hedlund's district.
Worcester & Middlesex - Obama 51.9%-46.2% No Republican
This district is in Fitchburg/Leominster.
First Essex & Middlesex - Obama 50.5%-48.1%, Bruce Tarr (R) unopposed
It's nice when they don't challenge the few seats Republicans have.
Bristol & Norfolk - Obama 50.4%-48.2%, Democrat 62.5%-37.5%
The district adjacent to Ross' district.
Plymouth and Barnstable - Obama 50.3%-48.5%, Democrat 58.2%-48.5%
Overlaps three House districts represented by Republicans.
Worcester & Norfolk - Obama 50.2%-48.3%, No Republican
Plymouth & Norfolk - Obama 49.6%-49.3% Bob Hedlund (R) 68.3%-31.7%
The only Republican they challenged.
Worcester Hampden Hampshire - Romney 48.94%-48.92%, No Republican
This was the only district in Massachusetts that Romney won. Probably a good place to field a candidate.