San Antonio, Oct. 16 -- Two days before President Donald Trump rallies in Texas, his eldest son on Tuesday looked to help him hang onto the reliably Republican state, playing to the conservative base by delivering red meat cultural attacks and lacing into several of his father's possible Democratic foes.

Donald Trump Jr., the swaggering embodiment of the Make America Great Again agenda, was the main event at a campaign event in San Antonio ahead of the president's rally in Dallas on Thursday. Trump Jr. did not shy away from taking on the primary threat to his father's presidency: the impeachment inquiry prompted by the elder Trump's push for Ukraine to investigate Democratic Joe Biden and his son Hunter.

"About the only job (Hunter Bide...