Minnesota Gov. Tim Walz came out swinging at the vice presidential debate with an attack on former President Donald Trump’s dismissal of injured U.S. troops made earlier in the day. Trump, when confronted about an Iranian strike on a U.S. military installation on his watch, said that over 100 servicemembers who suffered traumatic brain injury “had a headache.” During a question on Iran’s new attacks on Israel, where Ohio Sen. J.D. Vance tried to blame the Biden administration, Walz brought up Trump’s inability to even care about the harm he caused troops. “We’ll sometimes hear a revisionist hi…