(Washington Post) Surprise trading losses at the nation’s largest and most respected bank reignited a long-simmering clash between Washington and Wall Street on Friday, as lawmakers blasted banks’ efforts to fight regulations passed into law after the financial crisis.

Senior lawmakers seized on the news that JPMorgan Chase had lost $2 billion on risky bets — blamed by bank chief Jamie Dimon on “sloppiness and bad judgment” — as evidence that big, interconnected banks cannot be trusted to stop gambling in ways that put the financial system at risk.

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