17th for the dust to have settled. As for Trump's lame duck period, like I said... I'll be happy if all he's doing is squatting in the ruins of his presidency until he's officially ousted. The Republicans will have been so crushingly defeated at that point that they'll be completely hogtied anyway. Trump will have proven himself to be an extremely controversial, and ultimately destructively toxic, asset to the Republican party. A flash in the plan that bubbled over into a greasefire and burned down their house. I look forward to the right-wing revisionist media firestorm that follows such a situation.
But that's all predicated on the "if" of Democrats and Independents seeing the forest through the trees here and voting his bloated orange geriatric ass out of office.