538 on Trump

Nate Silver writes:

Lately, pundits and punters seem bullish on Donald Trump, whose chances of winning the Republican presidential nomination recently inched above 20 percent for the first time at the betting market Betfair. Perhaps the conventional wisdom assumes that the aftermath of the terrorist attacks in Paris will play into Trump’s hands, or that Republicans really might be in disarray. If so, I can see where the case for Trump is coming from, although I’d still say a 20 percent chance is substantially too high.

Quite often, however, the Trump’s-really-got-a-chance! case is rooted almost entirely in polls. If nothing Trump has said so far has harmed his standing with Republicans, the argument goes, why should we expect him to fade later on?

One problem with this is that it’s not enough for Trump to merely avoid fading. Right now, he has 25 to 30 percent of the vote in polls among theroughly 25 percent of Americans who identify as Republican. (That’s something like 6 to 8 percent of the electorate overall, or about the same share of people who think the Apollo moon landings were faked.) As the rest of the field consolidates around him, Trump will need to gain additional support to win the nomination. That might not be easy, since some Trump actions that appeal to a faction of the Republican electorate may alienate the rest of it. Trump’s favorability ratings are middling among Republicans (andawful among the broader electorate).

Trump has net favourability of -18%. And that has been constant for around two months now.

… exit polls like this one have historically asked voters in Iowa and New Hampshire when they made their final decision on how to vote. These exit polls find that voters take their sweet time. In Iowa, on average, only 35 percent of voters had come to a final decision before the final month of the campaign. And in New Hampshire, only 29 percent had.

We won’t really know what it is looking like until 2016.

70% of primary voters are yet to make up their mind. Trump is getting 32% of the 30% who have made up their mind.