Fox's analysis is that Joe Biden succeeded by taking the virus seriously, building his margin in the suburbs, and because the GOP didn't push mail-in voting.
In other words, the network's advice led Donald Trump to ruin.
Trump didn't take the virus seriously because he was listening to Fox.
His suburban strategy was built around fearmongering the Floyd protests because he was listening to Fox.
He told his supporters that mail-in ballots were a source of fraud because he was listening to Fox.
The actual impact of Trump taking Fox's advice, particularly wrt the coronavirus, proved devastating for the country.
But as political counselors, they failed him.
Fox is a megaphone for the GOP base. Its programming motivates conservative Republicans. But what gets conservative Republicans to tune in to watch TV is not a majoritarian message!
The GOP is a minoritarian party that can win power because of the country's anti-democratic institutions, and so it's plausible to be able to win by pushing a Fox message. But this time, at least, it didn't work.
Tucker Carlson's right-wing commentary can build you the biggest audience in cable news history.
Trump likely also saw Steve Scalise, the number 2 House Republican, pushing the same garbage about the election results on Fox, saying "some very questionable things happened" in key states.
There's a Starbucks in Trump's DC hotel and one in his NYC skyscraper.
There's no policy agenda attached to what Carlson is saying, he's not explaining what actual concrete steps should be taken to stop corporate consolidation, because his economic populism is a culture war grift.