Peter Rey Aguilar is an American politician who has been chair of the House Democratic Caucus since 2023. He has been the U.S. representative for California's 33rd congressional district since 2015. He served as mayor of Redlands, California, from 2010 to 2014, and as the president of the Inland Empire Division of the League of California Cities. Aguilar served on the Redlands City Council from 2006 until his election to Congress.