2020 vision: "Hundred-year storm"?

"[T]he enthusiasm that propelled Democrats to a decisive takeover of the House in the midterms is still surging, driving crowd sizes and intensity typically seen in the days before the first caucuses and primaries, not a year ahead of them," the N.Y. Times' Sydney Ember reports from Iowa City.

Why it matters: Democratic voters are delighting in populist "calls to spurn big donors, the policies to fight wealth inequality and the promises of relief from college debt and steep medical bills."