The Colorado Education Association endorsed U.S. Rep. Jared Polis in the governor’s race on Monday.

Support from the 35,000-member teachers union came after it endorsed Cary Kennedy, a former state treasurer, during the Democratic primary. In addition, an independent group calling itself Teachers for Kennedy ran ads criticizing both Polis and another Democratic candidate, Mike Johnston.

But Polis won the nomination and is now running against Republican State Treasurer Walker Stapleton to succeed Gov. John Hickenlooper.

CEA President Amie Baca-Oehlert said in a statement that the organization’s members “share Jared’s concern that too many communities don’t have the resources they need for every child to succeed.”