Why do people vote against themselves?

Why do people vote against their best interests? This age-old question is relevant for many Michael Baumgartner voters.

My father many years ago opined that people so dreamt of joining the rich that they closely related to them and voted with them.

But economic mobility has greatly diminished, including by the billionaire-friendly “One Big Beautiful Bill” championed by Baumgartner, so those dreams...