Senate Bill 627, authored by Democratic Sens. Scott Wiener of San Francisco and Jesse Arreguín of Berkeley, passed along party lines last Thursday — two days after the Assembly approved its version — and became the nation’s first such prohibition to advance through a state legislature.

Lawmakers crafted the bill following the Trump administration’s immigration raids across Los Angeles County, responding to concerns that masked enforcement creates opportunities for criminals to impersonate legitimate officers and prey on migrants. The measure gained additional momentum after last week’s Supreme Court action allowing immigration stops based on ethnicity and language.

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