I think the biggest “What if” that they omitted is the overarching one behind this entire campaign. What if the Obama Administration had not pushed Congress to overreach and cram its agenda down the throats of a skeptical electorate? If Obama had made at least an effort to “govern from the center”, he and his party probably would not have alienated independents and would be in a much stronger position right now.
Of course, that would essentially be asking “What if Obama wasn’t Obama?” He and the Democrats bought into his own hype, and now they’re going to pay the price. What’s worse for them is that I don’t think Obama has nearly the acumen and political discipline to bounce back the way Clinton did in 1995-96.