"Leftists" moving to New Hampshire are heavily outnumbered by Republicans, twat.
No proof of this claim has been demonstrated. Presumably anecdotal claims from a New Hampshire Democrat are not particularly convincing. Talk to New Hampshire Republicans or conservative/libertarian independents (and I have) and they'll say just the opposite, that its the "Massholes" that are ruining their state.
Of course there are Republicans and independents among the migrants, but there is no reason to believe that they "heavily outnumber" Democrats.
The Boston Globe Magazine article I posted was neither the first nor the only source to at least partially attribute NH's leftward trend to migration from other states. To simply claim it is "wrong" is wrong.
Living in a state doesn't automatically give you special insights as to its politics, especially as your own perceptions are skewed by your family, friends, and acquaintances, who more often than not tend to be like you.
Please look at the county map from the 2008 election: McCain did best in the Southern part of the state, which has the most Massachusetts migrants and where many people in fact commute to work in Massachusetts. Up north, Obama won by much wider margins, and these areas, largely as a result of being economically depressed, have experienced little migration from Massachusetts, or anywhere else for that matter.