Politics, however, is inescapable. The family is battered by political ads while watching Cardinals football games. Mr. Martinez drives past billboards on his predawn commute to haul wastewater, and his daughter, Julissa, sees ads as she flicks through social media.

On one blistering late-summer Sunday, arguments started up — again — about why Julissa had embraced Ms. Harris. “Because Taylor Swift endorsed her,” Mr. Martinez said. “I don’t like Taylor Swift,” she retorted. Explaining her support for Ms. Harris, she said: “I just like what she stands for — women’s rights and everything. It’s empowering for a woman to be so powerful.”

Julissa glanced at her father. “A man will never know what a woman goes through,” she said.

On your left you can see the purest form of ideology, nearly 99% pure , unfiltered, sans GMOs.