Here's why voters are sticking with Trump as party leaders abandon him

Bloomberg View.

One of the stranger aspects of the Donald Trump presidency is how many Republican voters still support him. According to the latest Gallup poll, 81 percent of party voters approve of his job performance, down just 10 points since the inauguration.

It's strange because so many Republican members of Congress, not to mention conservative journalists and intellectuals, find the president so dangerous. The latest example is Sen. Bob Corker, R-Tenn., chairman of the Senate Foreign Relations Committee, who announced last month that he would not be seeking re-election.

As he told the New York Times on Sunday: "Look, except for a few people, the vast majority of our caucus understands what we're dealing with here. Of course they understand the volatility that we're dealing with and the tremendous amount of work that it takes by people around him to keep him in the middle of the road."

Corker was responding to one of Trump's latest tweetstorms. The president said Corker begged him for an endorsement, which Corker denies. Corker responded by observing that the White House had turned into an adult day-care center.

Now there are a few explanations why so many Republicans disagree with their representatives in Congress. For many on the left, this is evidence of a deep and racist rot within the party.

Conservative populists, meanwhile, argue that the disconnect is best explained by the failure of the Republican establishment to address illegal immigration and the downside of free trade agreements and their impact on the working class. Another explanation is the failure of the Republican Party to make good on its own promises to police the border or repeal Obamacare.

It's an old pattern. In 1964, Sen. Barry Goldwater was to liberals the dangerous ideologue who quipped that he would leave it up to field commanders in Europe to determine when to launch nuclear weapons at the Soviet Union. He aligned himself with hardcore anticommunists and attacked his party's establishment. By the end of Goldwater's career, he was the conscientious conservative warning his fellow Republicans about the rise of the religious right.

Corker himself is an example of the deplore-and-rehabilitate cycle. This week he is the darling of thoughtful conservatives and liberals because he has the courage to speak plainly about the unique danger of the Trump presidency. But Corker himself was a key validator of Trump in 2016, praising the then-candidate's first major foreign policy speech and serving as an adviser to the candidate. As recently as mid-September, Corker downplayed rumors of a rift between himself and the president when he said, "For people to act as if there's daylight between us, that just is not true."

Indeed, when he first ran for the Senate in 2006, Corker was perceived as a political cynic willing to play on racial resentments against Democratic candidate Harold Ford Jr., an African-American. The Republican National Committee ran an ad for Corker that featured a white woman saying, "I met Harold Ford at the Playboy party," prompting a mini-scandal. William Cohen, a former Republican senator from Maine, took to CNN to denounce the ad as "a very serious appeal to a racist sentiment."

Of course, politicians are allowed to change their minds. But the voters are smarter than most of their representatives think. They've seen this cycle play out for decades and it almost always ends the same way. In 2008, presidential candidate John McCain was a dangerous, out-of-touch warmonger who wanted to bomb-bomb-bomb Iran. Today he is a statesman doing his best to save the republic from the leader of his party.

The sad truth is that Trump really is playing a dangerous game. His personal insults against North Korea's dictator, Kim Jong Un, risk an escalation and detract from a strategy aimed at pressuring China to rein in its client. His personal and public eruptions at senior advisers and cabinet secretaries undermine their ability to do their jobs. His failure to build coalitions in Congress has scuttled his party's legislative agenda.