commentariat
All the pundits and commentators of the news media collectively.
informal
From Boston, a man who finally joined the commentariat by making his debut on CNBC’s Hardball, Esquire Magazine writer-at-large, Charlie Pierce!
Where it comes from
Probably a blend of commentary + proletariat, perhaps after proprietariat and salariat. Perhaps compare also secretariat.
Adapted from the Wiktionary entry commentariat (CC BY-SA 4.0).