When soldier Kyle Miller was killed by a roadside bomb in Iraq on June 29, 2006, the man expected to lead them into combat was not there. Tim Walz, who would go on to be Kamala Harris' running mate, left his Minnesota National Guard unit two months before it deployed - and some will never trust him again. That includes Miller's mother who delivered a damning verdict on Walz's character, accusing him of taking the 'coward's way out' and 'running away' by opting to campaign for Congress instead of going to Iraq to face danger with her son.