I'm a fair guy so I will support Ronin on this one - The statement from Nunes was only in regards to surveillance materials "not related" to the FBI's investigation of possible collusion between the Trump campaign and Russia.  These were intercepts from other investigations and the "incidental" occurrences were only part of unrelated surveillance, so Ronin is correct in that regard.  Trump and his campaign very well could be under surveillance as part of the FBI's ongoing investigation - it has neither been confirmed or denied as details of an active investigation are not available.