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Leland Yee, the former state senator from central California who was arrested last month on federal bribery and corruption charges, was a Sacramento favorite of COPE, the political arm of the California Federation of Teachers.

The union was one of the biggest contributors to Yee’s campaign for California Secretary of State. His arrest prompted him to drop out of the race.

According to financial disclosure filings, Yee had raised more than $800,000 for his campaign. As one of his single biggest contributors, COPE donated $13,600 to help fund his run — $5,000 in December of 2013 and $8,600 in February of this year.

Yee has long had a strong relationship with labor: In 2012, he was cited as one of only five Senators to receive a perfect score from the California Labor Federation based on his voting record.

Another large contributor to Yee is a committee sponsored by the California Faculty Association, which also gave his campaign $13,600. See the full list of contributors here.