Cell phones are contraband in every lockup I've ever heard of. But I don't know everything.
There is big drama over contraband cell phones, though, I do know that.
I'm guessing Cohen was perusing 8kun, qmap.pub, and Trump tweets on his phone and his Democrat cell mate objected.
Coulda been a Freeper from beyond the trees, too.
Now we know what’s behind JB ROFL ;)