Rogan's been a dickhead for decades. Here he is appearing on Alex Jone's show Infowars back in 2010. According to Alex Jones, him and Rogan are great buddies and talk/text all the time.

Note, the podcast I linked is called KnowledgeFight and is two comedian types covering Infowars. Just letting you know if you listen to that you won't be exposed to a straight feed of Infowars nonsense, you'll have the filter of two smart and funny guys giving context and breaking things down in between clips.