You are the one splitting hairs between investigation and surveillance, between Trump and Trump Campaign, and between Obama and Obama administration, and between FBI 2016 and FBI 2017. Seems like your terms change meaning every post.
Anyway, you asked: "You seem to be claiming that there was an intentional effort by Obama or his administration to surveil Trump and his top associates, yes or no?" Starting to appear that way. Comey testified that there was. Nunes said there was. You seem to think that there was. We'll see. (Or, I will see...you will draw your conclusions right now, and insist that everyone else do so now as well.) Now, if you want to split hairs between an investigation and surveillance, or directly putting wires together to gather information, as opposed to combing through data already collected by other means, go right ahead. But YOU are the one splitting hairs and drawing fine distinctions, not me.
"If yes, what specific leaks that have been reported on do you attribute to those efforts?" All of them. All of the ones you are using, whatever they hell they are. That has been my point all along. You are using the leaks from an investigation/surveillance/data gathering to justify your position, while denying that the investigation/surveillance/data gathering took place. That is just bizarre to me. If there is public information which supports all the collusion and treason allegations against Trump that you are making, then there is public information that supports Trump's contention that he was investigated.
[By the way, I may be off the board for a couple days. I'll check in if I can. I would like to see your answer.]