From YouGov Battleground tracker:
In Connecticut, Democratic incumbent Dannel Malloy faces the same Republican challenger, Thomas Foley, he defeated four years ago by a razor-thin 0.5 percent margin. This time, the race is equally close (Malloy leads by less than 1 percent in our latest survey) and uncertain (the difference is well within the 4.3 percent margin of error).
See data here.
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