Over the past 18 months, whether in Midwestern airports or New Hampshire and Iowa hotels, I learned the best way to spot a Donald Trump supporter was to note who was remaining silent.

As Marco Rubio or Ted Cruz or John Kasich voters enthusiastically shared their reasons for supporting their candidate, a family member or friend would often stand by quietly.

When pressed, if they came clean, it was often with downcast eyes or an apologetic smile: “I’m voting for Trump,” they’d almost whisper.

A few months ago, an Uber driver told me he was voting third party, then tepidly announced he was voting Trump as I exited the car. Why didn’t he just tell me this in the first place, I asked. “Because I thought you would judge me,” he said.