Comey knows all, due to the Executive Order by Obama allowing information sharing, and due also to the Five Eyes agreement. Obama never had to request a wiretap from GCHQ or et al., because the whole point of Five Eyes is to allow for circumvention of things like “warrants” and “domestic law.” The full video of Comey’s full testimony is below.
To truly know if the Obama Administration did in fact wiretap Trump Tower, it would require Comey to admit and explain how Information Sharing and Five Eyes is used by his agency, which of course would “do damage to our intelligence community’s sources and methods”.
This is why James Comey didn’t do anything to Clinton before the election. Revealing how he came to possess damning information against her (Five Eyes/Information Sharing) would become a larger scandal than the Clintons’ criminal behavior.
Same rules currently apply with Trump, whether or not there is any damning information, for Comey to reveal how they know either way would be an actual scandal larger than the one in which he currently finds himself involved. (Five Eyes/Information Sharing)
The Five Eyes, often abbreviated as FVEY, is an intelligence alliance comprising Australia, Canada, New Zealand, the United Kingdom and the United States. These countries are bound by the multilateral UKUSA Agreement, a treaty for joint cooperation in signals intelligence. It is important to note that Russia is not bound to the UKUSA Agreement and is excluded from the Five Eyes alliance.
And here we can all, finally, discern that the reason for the domestic spying apparatus is for blackmail and entrapment purposes. In other words – to protect and preserve the positions of the power elite.
They can’t use these tools this publicly and openly without a significant risk of uncontrollable public backlash. These hearings are all for show. We will only learn about what actually goes on from hacks and from leaks, or from incompetence, from now on.