The most delightful fact you will read about an American legislator today comes from Mark Leibovich's interview with Sen. Tom Cotton, the junior senator from Arkansas:

You have been described as having very little appetite for frivolity. Do you have any guilty pleasures? I run a lot every morning.

That sounds neither guilty nor pleasurable. But I do it so I can indulge in the guilty pleasure of eating birthday cake.

Every day? Most days, with ice cream. Early on, when my wife and I were dating, we went to the grocery store, and I told her that sometimes I just buy birthday cakes, and I eat them. And she said: "Really? I do, too."