Democratic presidential candidate Bernie Sanders asked in a tweet Saturday, “You have families out there paying 6, 8, 10 percent on student debt but you can refinance your homes at 3 percent. What sense is that?”

It didn’t take Bill Kristol very long to weigh in: “Most economically illiterate tweet ever?”

We’ll let others, who were no less merciless, explain it:

(H/T: Twitchy)