Democrat Julián Castro talks about exploring the possibility of running for president in 2020, at his home in San Antonio in December 2018. Eric Gay/AP hide caption toggle caption Eric Gay/AP Politics Former HUD Secretary Julián Castro Launches Presidential Campaign January 12, 2019 His announcement came Saturday in Texas, after weeks of hinting he was ready to join the 2020 Democratic primary field. "I've always believed with big dreams and hard work anything is possible."