Hallie Jackson's top 10 neighbors are an almost unbroken column of journalists — eight of the ten share her subcategory, with scores compressed into a narrow band from 0.986 down to 0.979. Similarity here measures how closely two entities' audiences resemble each other in composition; the tight range across all ten positions is the defining structural fact.

Katy Tur (0.99) and Kasie Hunt (0.99) sit at the top, followed immediately by Chuck Todd (0.98) and Natasha Bertrand (0.98). The two non-journalist entries — James Comey (0.98), a Government Official, and Sally Yates (0.98), a Politician — slot in at positions five and seven without meaningfully breaking the pattern. Their presence alongside journalists like Philip Rucker (0.98), Jim Acosta (0.98), Peter Alexander (0.98), and Jake Tapper (0.98) suggests the audience gravitates toward political accountability figures broadly, not just reporters by title.

The flat shape means no single neighbor dominates and no cluster stands apart — the audience is drawn from a consistent, well-defined pool that spans political journalism and adjacent public-accountability figures, with essentially no variation in pull across the top ten.