I seriously doubt he requested it. He brilliantly kept a layer around him. But he most assuredly knew about it. He was just smart enough to hire people who didn’t need to be told what to do.
The first Democrat taking point was there was no wiretap; then they said it was approved by a FISA court; then it was first refused by FISA and submitted for only a narrow reason.
This story will unravel, and we'll really see how rotten the Obama administration was. The best part is watching the Obama defense fall apart in tatters.