An interesting article in National Journal goes into discussing the ideological makeup of those who support Trump. For those of us who activitly pay attention to politics one can agree that most of Trump support stems from Pat Buchanan style paleoconservatism. These are considered radical voices in US politics but I have to disagree with that sentiment. Being a radical in regards to politics is supporting positions outside the mainstream. Which from the naked eye yes it appears that those voters are radical but from a liberty perspective they're really not.
When you look at people like Pat Buchanan who is widely considered the face of US paleoconservative thought. The three main tenants of paleoconservative thought are economic nationalism, supporting the drug war and immigration controls. All three of these positions are not voluntary as they require men with badges and guns to enforce. Those who support them don't trust the market to come to these positions or regard the market as to slow to adopt them. For the non-political they would see this as ironic that those who are under the banner of conservative would take an anti-free market stance. However paleoconservatism was never about the free market, just less socialist than the left's economic ideas.
Using men with guns and badges to enforce a particular way of thinking, conducting one's self or business isn't radical. In the US and in pretty much most of the world this is the norm. To consider that way of thinking to be radical is absurd. When you really look at elections what is it really about? It's about getting a politician or group of them to use men with guns and badges to enforce a particular way of life. It's not radical, it's statist and the difference between the supporters of the various presidential candidates is which version of statism that they want to force on everyone else.