The congressional delegation in s MA is 100 perent Democrat. Where else is that the case? RI, VT, OR?, ND, must be a long list after all.
OR has one GOP Representative (Walden).
I believe tha the states with an all-RAT congressional delegation are MA, CT (counting Lieberman as a RAT), NM, HI, RI, VT (counting Sanders as a RAT), and ND. Am I missing any?
CT too, depending on how you count Joe Lieberman.