Analysis: This is what wiretapping is. Here's the legal framework that allows for wiretapping and how this framework is applied. Here's a little history of wiretapping. Here's what I found when I searched government records. Here's what I don't know and why.  Here's my conclusion, with sufficient qualifiers based upon what I don't know.

Parroting a talking point: Trump lied about Obama wiretapping.  See the difference?