Donald Trump and his campaign are metaphorically working the referees ahead of his debate because he allowed the rules to be “rigged” against him. The former president and his allies have been preemptively complaining about the rules, the CNN moderators, and the studio setup, and suggesting that president Joe Biden will be taking some form of performance-enhancing drugs to gain an advantage, but conservative columnist Matt Lewis told MSNBC’s “Morning Joe” that Trump clearly doesn’t feel confident that he’ll win on the merits. “Whether it’s an election like the 2020 election, whether it’s a tri…