Steve Bannon hasn't worked in the White House for years, but he played a pivotal, and previously unreported, role in the explosive meeting between President Donald Trump and Ukrainian President Volodymyr Zelenskyy earlier this year that changed the course of U.S. policy toward Ukraine. The story is first reported in an excerpt in The Atlantic magazine from ABC News Chief Washington Correspondent Jonathan Karl's upcoming book, "Retribution: Donald Trump and the Campaign that Changed America." Karl reports on a meeting of Trump's national security team shortly before Zelenskyy's visit to Washington in February where Trump stopped the meeting and asked then-national security adviser Michael Waltz to "get Steve Bannon" on the phone. "Hey, Steve, I’ve got the boys here," Trump said. "I’m going

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