First Person is a series of quick videos from the Cook Political Report editors exclusively for our site license members. Make sure to check our other premium videos, including full recordings of the briefings.

This week, House Editor David Wasserman breaks down our latest House rating changes. Overall, there are now 35 Democratic-held seats in Toss Up or worse, and we're revising our fall House outlook to a net GOP gain of between 20 and 35 seats.

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