Ranking Competitive State Legislative Chambers in 2012

[Nichlemn]

New Hampshire is incredibly swing-y, and I'm not sure why -- the state ditched straight-ticket voting. You'd almost expect that smaller seats would be less prone to swings, not more so.

One reason is a high number of independents, the other is the relatively homogenous distribution of the vote. Like, it's possible that there wasn't actually very much of a swing from 2008 to 2010 in the state legislative popular vote, but as so many seats are marginal that small swing flipped them all.