- R+3 district rated Lean R — Steel won 2024 by only +1.2% over Derek Tran; Tran has confirmed a 2026 rematch
- 200K+ Vietnamese-Americans anchor Little Saigon (Westminster/Garden Grove); older Vietnamese-Americans lean R, younger ones lean D — Tran's ethnicity complicates this split
- Both Steel and Tran are well-funded; incumbency advantage plus R+3 lean gives Steel the edge in a neutral environment
- D+5 national environment turns this Lean R into Toss-up — Orange County suburban drift toward Democrats continues
CA-45 Race at a Glance
| Metric | 2024 Result | 2026 Outlook |
|---|---|---|
| Incumbent | Michelle Steel (R) won | Seeking 3rd term (new CA-45) |
| Challenger | Derek Tran (D) — lost by 1.2% | Tran confirmed 2026 rematch run |
| Presidential lean | Trump +3 in district | Baseline: Lean R |
| Steel fundraising | ~$3.2M raised cycle | Strong incumbency advantage |
| Tran fundraising | ~$2.8M raised cycle | Rematch challenger, national attention |
| Key demo: Viet-Am | Split — older R, younger D | Tran nationality factor in play |
| DCCC targeting | Tier 2 target | Tier 1 target if environment shifts D |
District Geography: Little Saigon, OC Suburbs, and the Coastal Belt
| Area | Share of Vote | 2024 Presidential | Key Community |
|---|---|---|---|
| Westminster / Garden Grove (Little Saigon core) | ~28% | Trump +8 | Vietnamese-American, older R lean |
| Huntington Beach / Fountain Valley | ~32% | Trump +6 | White non-college, strong R |
| Seal Beach / Los Alamitos / Cypress | ~22% | Trump +3 | Suburban mixed, shifting D |
| Buena Park / La Palma (northern edge) | ~18% | Slight Trump | Korean-American, mixed lean |
The district’s R+3 lean is driven primarily by Huntington Beach — one of California’s most Republican beachfront cities. Tran’s path to victory requires cutting Steel’s Little Saigon margin from ~15 points down to single digits while running competitive in Seal Beach and the northern suburban belt. In a D+6 national environment, that math is achievable.
The Vietnamese-American Factor
No congressional district in America has a more prominent Vietnamese-American political dynamic than CA-45. The district encompasses Westminster and Garden Grove, the heart of Little Saigon — the largest Vietnamese-American enclave in the United States. The community's political identity was shaped by the Vietnam War and the anti-communist sentiment that followed, which drove a strong alignment with the Republican Party in the 1980s and 1990s.
Derek Tran's 2024 candidacy complicated this dynamic. As a Vietnamese-American Democrat, Tran was able to reduce the traditional Republican margin within the community, particularly among younger and second-generation voters. Steel — born in South Korea — also has strong appeal within the broader Asian-American community. The 2026 rematch will test whether Tran's near-win was a high-water mark driven by 2024 conditions or a durable shift in community politics.
Why This Seat Matters in 2026
With the House majority expected to be decided by fewer than 10 seats, CA-45's R+3 lean makes it a borderline target — competitive enough to flip in a D+6 or stronger environment, but not a top-tier target in a neutral environment. The DCCC will watch early polling and fundraising to determine whether to invest Tier 1 resources. If Tran outraises Steel in Q1 2026, expect national Democratic money to flow in aggressively.
Steel's incumbency advantages are real: name recognition, a donor network, and the ability to claim credit for district-specific wins. But her narrow 2024 margin — in a Trump year with a favorable national environment — suggests genuine vulnerability. In a D+6 wave environment, CA-45 moves from Lean R to Toss-up territory.
Environment Scenarios
In a D+4 to D+5 national environment (the floor of current projections), CA-45 stays Lean R and Steel survives. In a D+7 or stronger environment — consistent with Trump's approval below 42% in October — the district becomes a genuine Toss-up and Tran becomes a strong favorite. The single most important non-local variable is the October 2026 presidential approval number.
