The leader of California's state Senate rejects a Justice Department letter that says to comply with federal immigration enforcement or risk losing grant money.
Senate President Pro Tem Kevin de Leon says the Trump administration is basing its policies on "principles of white supremacy" and not American values.
The Los Angeles Democrat says the administration's targeting of diverse cities and states goes beyond constitutional norms and will continue to be challenged.
De Leon has been an outspoken critic of the administration's immigration crackdown.
The Trump administration sent letters to nine jurisdictions in its conflict with sanctuary cities, communities that refuse to comply with federal immigration authorities.
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