“I don’t know why he was coming up to brief the president on something that we gave him,” Spicer told reporters, adding: “It doesn’t really seem to make a ton of sense.”
It would make "ton of sense" if Nunnes was asking Trump what to do with the so called new information. Should I release this to the committee? Should I release this to the media so we can support our claim of being surveilled? Will you make sure I keep my chair position? Where did you get this information?
The "source" could have been from Fox or Breitbart like the one about British intelligence being asked to surveille Trump by Obama. Nunnes wouldn't want to share this source information with the committee at the risk of being laughed out of his chairmanship of the house intelligence committee.
Nevertheless, he should be removed as chair since he has demonstrated his lack of commitment to a fair and impartial investigation. At this point we do not know what else he has shared with the people under investigation.