Rules. Yeah rules ought to hold him. So CNN believes it can keep Donald John Trump under control during tonight’s debate. They have rules. Rules will tame him. And no live audience to mug for. They’ll mute the candidates’ mics when their answer periods are up. Slate’s Molly Olmstead wonders: Will all those rules keep this exercise on the rails? CNN has said that moderators Jake Tapper and Dana Bash “will use all tools at their disposal to enforce timing and ensure a civilized discussion” (emphasis mine). But it remains to be seen what that means. If Trump begins stalking the stage menacingly or either candidate starts interrupting (or even yelling), will Tapper and Bash open up a trapdoor? Whip out a lasso or old-timey shepherd’s crook to yank the candidates offstage? Pull a fire alarm? And there’s no plan for live fact-checking. How will any falsehoods be curtailed? They won’t be. Trump is a firehose of falsehoods. CNN CEO Chris Licht was fired a month after a town hall with Trump moderated by Kaitlan Collins last May became an “opportunity to spew lies, smear enemies, and insult the moderator.” No one (here) needs reminding that Trump lost the 2020 election yet incited a mob to storm the Capitol on his behalf. Rules are for suckers and always “rigged.” “I also expect that CNN is going to rig it as much as possible and make it as favorable as they possibly can for President [Joe] Biden, but I don’t think…