Scenario · Democratic primary · White House 2028

United States President 2028 Democratic Primary: Pete Buttigieg vs Gavin Newsom

by Martin Avila · electionsmcp

Published 2026-06-17 · electionsmcp.com

Pete Buttigieg leads the Democratic presidential primary with 540 of 1990 delegates needed to win — 17 of 51 contests counted (through Oklahoma).

Democratic Primary 2028 · 1990 to clinch

540 Pete Buttigieg leads

27.1% of the way to the nomination

Pete Buttigieg

540

Gavin Newsom

411

Alexandria Ocasio-Cortez

216

Kamala Harris

Andy Beshear

Josh Shapiro

J.B. Pritzker

Mark Kelly

17/51 contests · 1346 delegates allocated · through Oklahoma

How this scenario was built

A brokered race once you use the real polls

Modeled on a quality-weighted aggregate of mid-2026 national polls (Emerson, AtlasIntel, UNH — weighted by pollster rating × recency × √sample), this forecast runs the 2028 Democratic field across the full 51-contest calendar — 3,877 pledged delegates, 1,990 to clinch — under DNC proportional rules with a 15% viability threshold, plus home-state and regional priors. California is modeled at county granularity off the certified 2024 Democratic vote.

Result: no candidate clinches — Buttigieg 1,374, Newsom 1,036, AOC 513, Harris 406, Beshear 381, Shapiro 167 — a brokered convention. Newsom carries home-state California (192 of 424). Reworked 2026-06-17.

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