Nate: The Bottom Could Fall Out For Trump
On the one hand, the fact that Trump’s support was so low to begin with could presumably mitigate the damage to him. If you’re only getting 40 percent of the vote, the voters you do have are probably pretty committed to you — and Trump has some passionate supporters.
On the other hand, the fact that Trump has only 40 percent of the vote means that the downside for him is awfully far down. What if he doesn’t win over any undecideds, and 40 percent turns out to be more of a ceiling than a floor? Trump’s unfavorable rating was approaching 60 percent even before the “hot mic” tape surfaced, which means he was already running into a headwind in terms of picking up additional support. Furthermore, he’s targeted a narrow slice of the electorate instead of a majority coalition. He doesn’t have much of a ground game to turn out his marginal voters, and, especially if he’s losing in the polls, they could decide that it just isn’t worth the time to vote.
If Trump gets stuck at 40 percent of the vote, you could wind up with an outcome like Clinton 51 percent, Trump 40 percent, Gary Johnson 7 percent, Jill Stein and others 2 percent, or something of that nature. That is, a double-digit win for Clinton, which could potentially yield somewhere around 400 votes for her in the Electoral College, and make states as exotic as Texas and Alaska competitive.
That outcome might seem far-fetched. But in an election with high uncertainty, it shouldn’t be. Even before the “hot mic” tape, our model gave Clinton a 5 to 6 percentage point lead, and the error in the forecast is roughly symmetric. The polls could move by 5 or 6 points toward Trump, giving him a narrow win, or — equally likely, per our model — they could move by 5 or 6 points toward Clinton, giving her a double-digit margin. To put it another way, a Clinton landslide is no more far-fetched than a Trump victory — and given the events of the past 24 hours, probably less so.
http://fivethirtyeight.com/features/the-bottom-could-fall-out-for-trump/
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