Bernhard finds out from a major ruling capitalist class propagandist, Ben Rhodes, how they work their magic to gain the public's acquiescence and support for their policies.
You can replace the "Iran deal" with "regime-change in Syria", "Russia's aggression" or some big trade deal the White Hosue wants to push through. It works the same way with every issue. Some experts in some (well paid) thinktanks get fed some juicy bits, they go out to cheerlead clueless reporters who then write whatever validates the various White House claims.
It is all test driven and works. Unless of course people have time and energy to inform themselves through other than the usual sources. Only few are able to do so.