Today, there are historically higher-than-average 48 open House seats, nearly evenly divided between the parties: 25 are held by Democrats, 23 by Republicans. And Republicans have decidedly more upside here: seven open Democratic seats are at risk of falling to the GOP (rated as Lean Democrat or more vulnerable, including three redrawn seats in North Carolina), whereas only two redrawn GOP seats (the 2nd District in Alabama and the 6th District in Louisiana) are poised to flip to Democratic control.

Overall, the more moderate wing of the Democratic party has been a bit more successful than the progressive flank of the party in open seat primaries for solid Democratic seats. Though a few competitive primaries are still ahead, Democratic voters have picked their nominees for 14 solidly Democratic open seats. The majority of these Democrats were backed by the New Democrat Coalition, a caucus representing the more moderate, business-friendly side of the ideological spectrum.

Meanwhile, the Congressional Progressive Caucus is poised to gain at least four new members: three from the California delegation, plus Sarah McBride in Delaware (McBride has

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