Quote by Michael Pollan
The larger meaning here is that mainstream journalists simply cannot talk about things that the two parties agree on this is the black hole of American politics.
Summary
This quote suggests that mainstream journalists in the United States are limited in their ability to discuss topics on which both major political parties agree. This creates a significant gap in the coverage of American politics, hence being referred to as a "black hole." It implies that journalists are often focused on highlighting differences and conflicts between parties, while neglecting to shed light on areas of agreement and consensus. This limited scope may hinder the public's understanding of important issues and prevent them from engaging in a more nuanced political discourse.