Roughly 110,000 voters turned out for last night’s caucuses. That compares to 187,000 in 2016. (2012 and 2008 were closer to last night’s numbers 122,000 and 120,000, respectively.) But that’s still the lowest turnout in more than a decade and dramatically lower than the last contest in 2016. To me the turnout number is much less significant than the result, which I discussed here.

But it’s not insignificant.

There are a few possible explanations. One is that it was incredibly cold last night. But let’s be honest: winters in Iowa are always cold as fuck. They’re used to it. More significant, Republicans could be pretty confident that the outcome of the caucus and the overall nomination battle are both pretty much settled in Trump’s favor. That is a big disincentive to show up. Those explanations, especially the second, get you pretty close to a good explanation.

But not all the way there.