By Abby Livingston and Patrick Svitek, The Texas Tribune

MIAMI — Home-state tensions flared between Democratic presidential candidates and native Texans Beto O’Rourke and Julián Castro at their party’s first presidential debate Wednesday night, with Castro saying O’Rourke has not done his “homework” on the issue of immigration. At issue were the inhumane conditions at detention centers for migrants — including Texas — and a photo published Tuesday of the bodies of Salvadoran father Óscar Alberto Martínez Ramírez and his daughter Valeria, both of whom died while trying to cross the Rio Grande to seek asylum in America. “Watching those images of Óscar and Valeria is heartbreaking, and should also piss us all off … and it should spur us to action,” Castro said, fielding the first question on immigration. Several other candidates addressed the matter, including U.S. Sen. Cory Booker, pledging to end Trump’s Immigration and Customs Enforcement policies.