Source? I'm calling BS. You can criticize anyone you want here. You start making threats and THEN that gets investigated.

This took me literally ten seconds to find:

https://nypost.com/2021/04/10/ca-podcaster-gets-visit-from-p...

[EDIT:]

I couldn't find anything similar about Cruz in a couple of minutes, mostly because the search term "Cruz critics" is massively dominated by stuff about his ill-advised Cancun trip.