CNN —

The Trump administration is preparing to cancel a large swath of federal funding for California, an effort which could begin as soon as Friday, according to multiple sources.

Agencies are being told to start identifying grants the administration can withhold from California. On Capitol Hill, at least one committee was told recently by a whistleblower that all research grants to the state were going to be cancelled, according to one of the sources familiar with the matter.

CNN has reached out to the White House for comment.

President Donald Trump has long made Democratic-led California a target.

Just last month, he threatened to withhold federal funding from California over a transgender athlete’s participation in a sporting event — the latest example of the president trying

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