First amendment rights violated to start with.
Check it out:

Court documents released Friday in the so-called “John Doe investigation” into political supporters of Wisconsin GOP Gov. Scott Walker show prosecutors subpoenaed phone-company records and that the probe went deeper than previously known, say conservatives who were targeted.

Attorneys for conservative activist Eric O’Keefe and the Wisconsin Club for Growth point to subpoenas requested by the John Doe prosecutors that sought records from “at least eight phone companies” believed to serve the targets of the investigation, according to The Wisconsin Reporter.

O’Keefe and the club have filed a civil rights suit against the prosecutors, alleging they violated conservatives’ First Amendment rights.