Advertisement'I Have To Ask You This': Julián Castro Pressed By Immigration Activist, Rancher07:19Download AudioResumeOctober 04, 2019Lulu Garcia-NavarroHeidi GlennfacebookEmailTexas voter Alston Beinhorn (left), presidential candidate Julián Castro, NPR host Lulu Garcia-Navarro and voter Dani Marrero Hi at Mi Tierra in San Antonio, Texas, on Sept. 30, 2019. (NPR)