So, we are left with only two possibilities. One--the intelligence information came from collection efforts carried out by the CIA or the NSA, or Two--the intelligence information came from a foreign collector (I believe it was the Brits) and that information was passed to the U.S. intelligence community and distributed as liaison reporting.A third possibility is both.
Sic Semper Tyrannis
Yes, Obama's People Were Spreading Classified Intel on Trump
Publius Tacitus