To this day, I can remember almost the precise spot where it happened: a supermarket parking lot in eastern Massachusetts. It was the mid-1970s; I was not yet a teenager, or barely one. I don’t remember exactly what precipitated the woman’s ire. But I will never forget what she said to my mother, who had come to this country from the Philippines decades before. In these words or something close, the woman said, “Go back to your country.”

No matter how much I found him ultimately unfit, I still gave him the benefit of the doubt about being a racist. No matter how much I came to dislike him, I didn’t want to think that the president of the United States is a racial bigot.

But Sunday left no doubt.