The origin of the Obama administration’s investigation of imaginary Trump-Russia collusion remains murky, but this much is clear: John Brennan, Obama’s Trump-hating CIA director, stands at the center of it. Brennan pushed for a multi-agency investigation of the Trump campaign, using as his pretext alleged intelligence from an unnamed Baltic state. That “intelligence” was supplied at the very moment Baltic officials had their own political motivation to smear Trump. “Last April, the CIA director was shown intelligence that worried him. It was – allegedly – a tape recording of a conversation about money from the Kremlin going into the US...