You mean the same majority of the major media outlets of all types that has been consistently hostile to Trump for many years?

If it's the oligarchs in the media who were a factor in this second victory, then it was through one truly spectacular mass-scale reverse psychology of getting exactly the opposite of the narrative they almost consistently pushed. That would be one very interesting story if it were at all true.

More realistically: to a very big (and apparently growing) swathe of the American voting public, the kind of shit that mattered most was what much of the media and their progressive political supporters in the major cities derided enough for all those millions of voters to dig in their heels and ignore them. Trump symbolically and often also literally, vocally represents this resistance to that media narrative, and thus he won again.