usion GPS co-founder Glenn Simpson, whose firm commissioned a controversial dossier alleging secret ties between President Donald Trump and the Kremlin, told congressional investigators last summer that the FBI found the dossier credible because an undisclosed “human source” associated with Trump had offered the bureau corroborating information. In a 312-page transcript of Simpson’s August 2017 … Continue reading ‘Human source’ in Trump orbit contacted FBI, Fusion GPS co-founder told sen…