Thousands of University of California and California State University system workers are unsure about their jobs and the future of their research after reports that President Donald Trump is going after the federal funding for California.

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

Gov. Gavin Newsom on Friday suggested California consider withholding tens of billions in annual federal tax dollars amid reports Donald Trump is preparing funding cuts targeting the state. Newsom’s suggestion came after CNN reported the president was considering a “full termination” of federal grant funding for California’s universities.