Moderator Lester Holt waits for the first US Presidential Debate at Hofstra University on September 26, 2016 in Hempstead, New York.

Moderator Lester Holt waits for the first US Presidential Debate at Hofstra University on Sept. 26, 2016, in Hempstead, New York.

Photo: Brendan Smialowski/AFP/Getty Images

Despite the elaborate ode to civil discourse, rules, and turn-taking that was announced before the candidates were announced on stage, Donald Trump is trampling all over Hillary Clinton and the debate’s purported moderator, Lester Holt.

Despite repeated, sniping interruptions from Trump when Clinton is talking (“Wrong.”) during her allotted time (“Wrong!”), Holt has completely failed to enforce his own rules and keep Trump quiet. Clinton is — whether out of adherence to the rules or fear of coming across as loud or rude or obnoxious or annoying or harping or something on tomorrow’s cable roundtables — staying comparatively silent. So long as Trump speaks whenever and however often he feels like it, unchallenged, Holt might as well be watching the debate from home along with the rest of us.