GOP Rep Adam Kinzinger posts violent, threatening calls recevied by office

Adam Kinzinger, a Republican House Representative from Illinois, posted a collection of the creepy and menacing calls received by his office—often dealt with by young interns staffing the phones.

Note the recurring obsession with cocksuckers. Is this an Illinois thing? Or maybe just the same guy calling at different gradients of sobriety?

CORRECTION: Kinsinger is a Republican, not a Democrat.