Commanders owner Dan Snyder believes he has enough “dirt” on fellow NFL owners, commissioner Roger Goodell and league officials that he could “blow up” several people and organizations, ESPN’s Don Van Natta Jr., Seth Wickersham and Tisha Thompson reported Thursday. “He’s backed into a corner,” a veteran owner told the network. “He’s behaving like a mad dog cornered.” ESPN’s report comes at a time when the embattled owner is facing investigations from the league and a congressional committee looking into workplace misconduct in the franchise. Yet, Snyder reportedly told associates he does not plan to lose the Washington team “without...