Redistricting and fights over political lines have fueled the aging of America's government. Republican Rep. Adam Kinzinger of Illinois outside a January 6 committee hearing on June 13, 2022. Partisan gerrymandering, the redrawing of political district lines to favor one political party over the other, has gotten increasingly tactical. In all, 14 House incumbents lost renomination in 2022, the highest number in a single cycle since 1992. If you're a Democrat in a Republican district, your days are probably numbered."

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