Why?
Because big media’s silence is doing a great job for him. If he used them, they’d have to acknowledge even a rumor of a story
No news is good news....
In 2004 the Communist Broadcasting Service and Buttociated Press were silent for 3 long days about the obvious flaws in their forged “Waco National Guard memos”.
They are accountable to no one, not the FCC, FEC, let alone the public when they run FALSE news and refuse to air any skepticism of their claims.