Could rhetoric about a corrupt election set the stage for Republicans to challenge a November defeat? With enough confusion, the Presidential election could be thrown to a “contingent election” in the House of Representatives, where a state-by-state vote would favor Republicans.
However, this seems like an unlikely scenario. Indeed, this is an area where the much-maligned Electoral College helps, by acting like compartments on a ship: if one compartment is compromised, the others can still keep the whole thing afloat.
—Princeton Election Consortium