New Hampshire Gov. Chris Sununu dealt a serious blow to Senate Republicans Tuesday when he took a pass on running for Senate against one of the GOP's top targets—Democratic Sen. Maggie Hassan of New Hampshire. But Sununu is no exception to the rule, and he could very well be the canary in the coal mine for Senate Republicans. While Republicans had been eyeing New Hampshire as a serious pick-up opportunity, they had also dabbled with the idea of making Democrats at least squander some resources on playing defense in blue states like Vermont and Maryland. But as NBC News points out, that GOP aspiration is contingent on one of those state's popular Republican governors showing any interest at all in signing on to be part of the Senate GOP caucus. Read more