Former President Donald Trump on Saturday publiclyfloated a plan for a “migrant league of fighters” whose No. 1 would face off against the “regular” champion of mixed martial arts. Trump got scattered laughs from the Faith & Freedom Coalition’s “Road to Majority” conference when he said he shared the suggestion with Dana White, CEO of the Ultimate Fighting Championship league. “I said, ‘Dana, I have an idea. Why don’t you set up a migrant league of fighters and have your regular league of fighters and then you have the champion of your league — these are the greatest fighters in the world — fi…