No he can't because the intelligence community would not go along with it.
And they would leak private conversations with foreign countries like Australia.... etc. etc.
I do notice that the leaks promptly stopped right after Trumps tweet that he was “wire tapped” and the spotlight was focused squarely on the intelligence agencies.
I blame the leaker(s) for revealing that the agencies do spy on Americans which probably happens a lot and might be legal. I hope that person or persons is feeling the heat right now.