Former President Donald Trump bizarrely suggested Friday that his longtime foes at CNN shift toward conservative coverage — and make him the centerpiece — to save the struggling cable network. “If CNN were smart, they’d open up a Conservative network, only have me on, and it would be the most successful network in History,” Trump wrote on his struggling social media platform Truth Social on Friday. “Fox only made it because of me, Twitter only made it because of me, and even Facebook is now in the tubes, having lost almost $90 billion since I was taken off, which was…