Joaquín Castro (September 16, 1974 - September 4, 2075) was the 46th President of the United States, serving from January 20, 2021 to January 20, 2029 when he was term-limited out of office. Prior to the Presidency, he served as the 48th Vice President of the United States under Hillary R. Clinton from 2017-2021, and before that was a U.S. Representative for Texas' 20th Congressional District. He was the twin brother of Texas Governor Julián Castro (1974-2061).