Poll: Independent King up big in Maine Senate race

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The poll goes a long way in explaining why national Democrats haven't been willing to show any support for Dill. The Democratic Senatorial Campaign Committee didn't even release a statement congratulating Dill on her primary win, and Chairwoman Patty Murray (D-Wash.) refused to tell The Hill which candidate she was backing in the general election last week.

While King has adamantly refused to say which party he'd caucus with, both parties expect he'll caucus with the Democrats should he win.

The poll of 506 likely voters was conducted by the think tank MassINC from June 13-14 and has a margin of error of 4.4 percentage points.

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