We've strived mightily to stick to down-ticket elections since launching our show more than two years ago, but the universe finally forced us to discuss the presidential race on this week's episode of "The Downballot"! But it's for a good reason: The new surge in Democratic enthusiasm for the top of the ticket is likely to have a salutary effect further down the ballot. And the events of the last few weeks are a reminder, as host David Nir and guest host Joe Sudbay say, that things can change awfully fast and we all need to remain humble.

But have no fear: We haven't forgotten our true calling! Our guest this week is Inside Elections publisher Nathan Gonzales, who is as devoted to downballot races as anyone. Gonzales tells us how the world of election analysis has changed over the last two decades and explains how his publication's widely followed race ratings are actually put together. He also talks about Inside Elections' efforts to fill a major data gap by polling key House races—and even breaks a little news about where they'll be polling next!