Connecticut is full of white liberals but most of them are affluent and work at NYC's banking and finance sector so I doubt they will respond well to Sanders' anti-Wall Street message.
The first section is only true for Fairfiled county.
Basically CT Dems are split into 3
1) Wealthy limousine liberals in the SW
2) Sizeable minority populations (largely black) in New Haven/Hartford/Bridgeport
3) More 'traditional' New England democrats in the small, white towns in the North and East of the state. Similar to what you would find in the rural regions of Mass or VT
I expect Sanders to do well in these regions, particularly in Litchfield County and the 'Quiet Corner' while Clinton should win the wealthy suburbs of Fairfield County and the cities.
Overall I would say its a lean Clinton right now.