Texas primaries will show 'tremendous' Democratic enthusiasm ahead of midterms: Former San Antonio mayor Castro

— -- San Antonio's former Democratic mayor Julian Castro predicts that Tuesday’s primary election in Texas will be the first sign of growing Democratic strength ahead of the 2018 midterm elections.

“What we’re going to see on Tuesday is a tremendous amount of Democratic enthusiasm,” Castro, who served as Housing and Urban Development secretary under President Barack Obama and is considering a run president in 2020, told ABC News’ Rick Klein on the "Powerhouse Politics" podcast.