Todd Spangler NY Digital Editor Dana White, chief executive of UFC, is one of the stars of the new Roku original docuseries “Fight Inc.: Inside the UFC,” touted as an “unprecedented” insider’s look at the company, marking its 30th anniversary. Earlier this month, White — a well-known supporter of Donald Trump — played a starring role in different production: Trump’s first TikTok video. Following footage of the ex-president greeting fans at UFC 302 in Newark, N.J., on June 1, the video shows White with Trump backstage at the fight.