Life isn’t fair. There’s no “fair” way to hold the presidential debate in the blessedly crowded Republican field. But choosing the top 10, by poll averages (and letting a second tier have its own debate) is about as fair as it gets. Or, as my colleague Jason Russell put it, “the Fox format is the worst debate format, except for all the others that have been proposed.”

A quick look at the polls used to determine eligibility confirms that.