But allies of the president who maintain the FBI had no reason to investigate Flynn in the first place insisted that the transcripts showed he had done nothing wrong. The transcripts are unlikely to significantly reshape public understanding of the contact between Flynn and then-Russian ambassador Sergey Kislyak, a central moment in the Russia investigation. But Republican Sen. Chuck Grassley, one of the GOP senators who released the transcript, said Flynn had done nothing wrong. The nature of those intelligence reports remains unclear, and they were not among the documents released Friday. The use by U.S. officials of a routine process known as unmasking to learn Flynn's identity from those reports has become a major issue for Trump supporters.