BYRON TAU and ERIC TUCKER.

Director of National Intelligence Tulsi Gabbard this month declassified material that she claimed proved a “treasonous conspiracy” by the Obama administration in 2016 to politicize U.S. intelligence in service of casting doubt on the legitimacy of Donald Trump’s election victory. But a review by The Associated Press of reports produced by federal prosecutors and congressional committees casts doubt on that claim and others made by the nation’s top intelligence official.