Will Mark Robinson's implosion engulf the GOP?

Just how big will Mark Robinson's blast radius grow? We're surveying the damage on this week's episode of The Downballot podcast, and it's looking pretty gnarly for the North Carolina GOP. Most Republicans have found increasingly creative ways of distancing themselves from their fatally flawed gubernatorial nominee, but the sheer number of tossup races on the ballot means that any downturn in enthusiasm could have profound effects in the Tar Heel State.

Co-hosts David Nir and David Beard also nerd out with Kirk Bado, editor of the National Journal Hotline, about this year's elections. Bado gives us a sneak preview of his new power rankings for Congress, which rank the top seats in both chambers in order of their likelihood of flipping. He also discusses a major new investigation into the dearth of House polling and highlights a few on-the-bubble races he's keeping an eye on.

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