Rand Paul: NSA Routinely Monitors Americans’ Communications Without Warrants
While this article offers the clearest presentation of the issue I've seen to date, I think the key point (which the article points out halfway in) is that the truth of Trump's claim that he was wiretapped does not depend on the presence or absence of a FISA warrant.The system is designed to be used without warrant, so those harping on the detail of whether or not a warrant existed that had Trump in scope are not focused on the core issue.It would be nice if all surveillance could be traced back to FISA warrants, but Snowden's revelations make it clear this is absolutely not the case.