Why don't Americans do more for poor people?

But another problem may be more broad-based: the way that many Americans look at the poor with disgust.

As Susan Fiske, a Princeton professor who has studied people’s attitudes toward the poor for more than a decade, told me on Friday:

“The stereotypes of poor people in the United States are among the most negative prejudices that we have. And people basically view particularly homeless people as having no redeeming qualities — there’s not the competence for anything, not having good intentions and not being trustworthy.”

Fiske’s research shows that people respond not only to the poor and homeless with revulsion, but they also react negatively to people they perceive as undocumented immigrants — essentially anyone without an address.

If some people’s impulse is to turn up a nose rather than extend a hand, no wonder we send so many lawmakers empty of empathy to Congress.