LOS ANGELES – The U.S. Justice Department Thursday joined state Republicans in a federal lawsuit in Los Angeles challenging the constitutionality of Proposition 50, the recently passed measure redrawing California’s congressional district lines to boost Democratic representation in Washington.

Assemblyman David Tangipa, R-Fresno, the California Republican Party, and 18 district voters brought the lawsuit last week, asking a judge to block the new district lines at least temporarily so California’s original map stays in effect for the 2026 midterm elections.

The suit, which names Gov. Gavin Newsom and California Secretary of State Shirley Weber as defendants, argues that the new Proposition 50 maps are unconstitutional because they improperly use voters’ race as a factor in drawing distri

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