That’s what I meant by content to put around adverts: he appeals to a target demographic for advertisers, advertisers pay more for slots during things that attract their demographic, so media outlets report on those things as much as possible.

Whether it’s pro-Trump, anti-Trump, or straight reporting of Trump, it’s a vehicle to get viewers watching the adverts betweens segments; it’s not only a vehicle for that, but media outlets make a lot of money from advertising, so have an incentive to show things that attract the people advertisers want.