The Flynn intercept doesn’t settle anything, the claim is that the tap was on the Russian Ambassador and Flynn got caught up in it. I don’t think we know that Flynn was on the phone from Trump Tower with the ambassador, either — he could have been somewhere else.
If the tap wa on the Russian ambassador, why haven’t we heard about any other transcripts (other than Flynn”s?)
The inescapable fact is there are transcripts where there should be none of Flynn. That is known and is not disputed, even by the Dem leader of the House Intelligence Committee last night on Carlson. Carlson nailed him on it and he stammered and tried to change the subject.
Flynn’s office was at the Trump tower during the transition. I doubt that he made calls to foreign ambassadors from home. I believe he called dozens of them.
So, based on this fact alone, it’s accurate to say that the Trump tower was wiretapped whether or not Flynn was the target. And to eavesdrop on US citizens domestically you need a FISA warrant. So the warrant should exist.
Another possibility is that the eavesdropping was done by a foreign intelligence service (ie. the British). The Christopher Steele situation suggests that the UK government was involved and was working in collaboration with the Obama administration.
From what I’be read, when the government is doing an intercept and they end up tapping an American citizen, they are to bend over backwards to minimize contact with the citizen and make sure he is protected.