In 2016 we found out that conservative elites didn't speak for Republican voters.
Think tankers may have hungered for entitlement reform and valued free trade, but a large group of Republican voters disagreed, and another large group had no strong views on these issues. When Donald Trump won the primaries and then the November election, many people who considered themselves conservative leaders found out that Republican voters weren't who they thought they were.
Now it turns out that Trump's prominent early supporters don't speak for the Republican masses either. Many of these luminaries are unhappy about Trump's airstrike against the Syrian government. "Those of us who wanted meddling in the Middle East voted for other candidates," tweeted Ann Coulter.
Republican voters, on the other hand, overwhelmingly approve of Trump's action. A Washington Post poll found that 86 percent of them support it.
To the extent the high-profile Trump fans are now disillusioned, it's because they over-read what the president and his voters stand for. As McKay Coppins points out in the Atlantic, Trump did not campaign as a consistent skeptic of military intervention abroad. "Instead, Trump entered the Oval Office with a bone-deep belief in vengeance, a tendency toward impulsiveness, and a history of saber-rattling rhetoric."
Intellectuals, whether they are for or against Trump, want to construct an "ism" into which they can fit his politics: an "ism" that includes opposition to free trade, mass immigration, foreign interventions that aren't necessitated by attacks on us, and entitlement reform. But Trumpism doesn't exist. The president has tendencies and impulses, some of which conflict with one another, rather than a political philosophy.
That's also true of most voters, especially when it comes to foreign policy. An adviser to President George W. Bush once remarked to me that a lot of people thought Republicans backed Bush because of the Iraq war, when in reality Republicans backed the Iraq war because of Bush. In the absence of detailed and deep convictions on a foreign-policy issue, voters will side with the politicians whose side they usually take.
Some primary voters surely backed Trump because they thought he would be less prone to Mideast "meddling" than other Republicans, and some people who don't always vote for Republicans in presidential elections may have found him an attractive choice for the same reason. His stance on trade drew other voters to him.