Puppycow
Penultimate Amazing
I tend to agree with Nate Silver - it wasn't so much that Trump was underestimated, it was that everybody assumed that the GOP would unite against him. It felt pretty obvious that Trump was going to bully someone like Jeb! into nonexistence, but if e.g. Christie, who's a bit of a bulldog, had seriously gone after Trump and the GOP-friendly media had taken him up on it, that could've done serious damage.
Ezra Klein disagrees: The GOP did unite against Trump. They just couldn't stop him.
http://www.vox.com/2016/2/24/11103704/the-republican-party-is-broken
An excerpt:
But the Republican Party did try to stop Trump. It just failed. And until the nature of that failure is appreciated, the strength of Trump's candidacy is going to be underestimated.
The Republican assault on Donald Trump was vast
The GOP didn't, in political science parlance, "decide" on a single champion — no one candidate received the bulk of official endorsements before Iowa. But parties do more than decide; they also veto. And the Republican Party did try to veto Trump — as did everyone else. Trump has come under a coordinated assault from the Republican Party, the Democratic Party, and the media that is unlike anything in my lifetime.
The first Republican debate featured Fox News — arguably the single most powerful actor in the modern Republican Party — trying to cut Trump's candidacy to shreds. The harsh questioning, which touched on everything from his past heterodoxies to his friendship with Hillary Clinton to his misogyny, kicked off a feud between Fox News and Trump that continues to this day.
The National Review, which acts as the official magazine of American conservatism, pulled contributors from every wing of the movement to write a Stop Trump issue. The festival of contributions — which included everyone from Glenn Beck to Erick Erickson to Bill Kristol — were clustered under the headline "Conservatives Against Trump." The magazine's own editorial was titled "Against Trump," and it began by calling Trump "a philosophically unmoored political opportunist who would trash the broad conservative ideological consensus within the GOP in favor of a free-floating populism with strong-man overtones."