Trump blames GOP candidates and Fox News for midterm losses
Blaming Fox News is the detail that jumps out at me. That network has been the friendliest platform he has, so going after it suggests he feels the coverage turned on him, or at least didn't do enough to boost his preferred candidates. It also tells you how isolated his view of the loss is: everyone else is the problem, never the message.
The broader pattern here is familiar. After a defeat, the blame game starts, and the party has to decide whether to listen to him or chart its own course. That decision matters because the midterms were a test of his influence, and the results suggest voters were less enthusiastic than the base. I'd want to know which candidates he named and what his specific complaints about Fox were. Without those details, this reads as deflection, but there might be real grievances in there about how certain races were covered.
I land on this: the story matters less for what Trump said and more for what it says about the Republican party's next two years. If he keeps pointing fingers, it gets harder for anyone to agree on a strategy.