Democratic Candidates for California's 48th Congressional District

2026 Primary Election — June 2, 2026

District: CA-48 covers parts of San Diego and Riverside counties, including Palm Springs. Voter registration: 37% Dem, 33% GOP, 22% NPP — shifted from red to "leans Democratic" under the Prop 50 redistricting map. Incumbent: Republican Darrell Issa retired just before the filing deadline, leaving an open seat in a nationally watched race. California uses a top-two primary: all candidates appear on one ballot; the top two vote-getters advance to November 3 regardless of party.[1]
Marni von Wilpert

Marni von Wilpert Dem Age 42

San Diego City Councilmember • San Diego Establishment Favorite
San Diego City Council (2020–present). Workers' rights attorney, former prosecutor. Flipped a GOP-held council seat in 2020. Author of CA's ghost gun ban.[2]

Top Issues / Platform

  • Rein in Trump — reassert War Powers Act, stop ICE overreach
  • Anti-corruption — government accountability, campaign finance reform
  • Workers' rights — raise wages, protect unions
  • Public safety — gun violence prevention, fentanyl crisis
  • Protect Social Security and Medicare

Key Endorsements

  • San Diego Mayor Todd Gloria
  • Rep. Scott Peters, Rep. Mike Levin
  • CA Attorney General Rob Bonta
  • San Diego County Democratic Party
  • Planned Parenthood Action Fund, EMILYs List, SEIU California
  • $1.04M raised; $494K COH (Mar 2026)[1]

Strengths

  • Won majority of CA Democratic Party convention delegates (just shy of 60% endorsement threshold)
  • Proven ability to flip GOP-held seats; broad institutional support
  • Strong local roots — represents part of district on City Council

Weaknesses

  • Crowded Dem field splits the vote
  • Attacked as too moderate by progressive rivals
  • City council experience only — no state or federal office
Sources [1] Ballotpedia — CA-48 Primary
[2] OC Register — Von Wilpert Questionnaire
[3] SD Union-Tribune Q&A
[4] KPBS — CA-48 Explainer
Brandon Riker

Brandon Riker Dem Age 38

Entrepreneur / Economist • Palm Springs Self-Funded Challenger
Trained economist (LSE, Washington College). Former Obama campaign organizer (2008). Ran for VT Lt. Gov. in 2016. Has the largest campaign war chest in the field, mostly self-funded. Lives in Palm Springs.[1]

Top Issues / Platform

  • Affordability — cost of living, economic development
  • Keep What You Earn Act — make first $50K earned tax-free
  • Robin Hood Act — Wall Street transaction tax
  • Higher minimum wage, expand Medicare access
  • Protect Social Security & Medicare for every generation

Key Endorsements

  • Sen. Peter Welch (VT)[5]
  • Primarily self-funded campaign
  • Limited elected-official endorsements in CA
  • $1.5M raised (mostly personal); $1.06M COH (Dec 2025)[1]

Strengths

  • Largest war chest in the race — can self-fund through November
  • Only trained economist in the field; strong on economic messaging
  • Lives in district (Palm Springs); active campaign with 700+ volunteers

Weaknesses

  • No elected experience; dropped out of VT LG race in 2016
  • Low name ID compared to von Wilpert
  • Little institutional support from CA elected officials
Sources [1][4][5] rikerforcongress.com
[6] SD Union-Tribune Q&A — Riker
Abel Chavez

Abel Chavez Dem Age 34

Educator / School Board President • Nuevo Grassroots Progressive
Teacher and president of the Nuview Union School District board. Small business owner. Grew up in extreme poverty. Raised $204K — second-best funded Democrat in race. Lives in Nuevo (Riverside County).[7]

Top Issues / Platform

  • Reduce cost of living — affordable healthcare, lower gas prices
  • Abolish ICE — replace with humane, accountable enforcement agency
  • Ban Wall Street landlords from buying single-family homes
  • Support public education — career pathways beyond college
  • End the Iran war; protect the economy

Key Endorsements

  • Grassroots campaign; no major elected-official endorsements listed
  • $204K raised; $16.9K COH (Dec 2025)[1]

Strengths

  • Second-best funded Democrat; actual campaign operation
  • Compelling personal story (poverty to educator/school board president)
  • Signed Term Limit Pledge; anti-establishment appeal

Weaknesses

  • Very low name ID; lives in rural Nuevo (far southeast corner of district)
  • "Abolish ICE" position may alienate moderate/swing voters
  • Uphill battle against better-known, better-connected rivals
Sources [1][7] SD Union-Tribune Q&A — Chavez
[8] OC Register — Chavez Questionnaire
Corinna Contreras

Corinna Contreras Dem Age 36

Vista City Councilmember • Vista Progressive Incumbent
Vista City Council since 2018, former Deputy Mayor. First Latina and first LGBTQ+ council member in city history. Delivered scholarships from cannabis tax revenue, safe parking program, microtransit. CA Assembly Woman of the Year 2019.[9]

Top Issues / Platform

  • Medicare for All
  • Affordable housing — mixed-income development, limit sprawl
  • Expanded public transportation
  • Worker protections — right to organize
  • Climate-resilient infrastructure, fire prevention
  • Immigrant rights

Key Endorsements

  • Grassroots campaign
  • $12.9K raised; $11.8K COH (Dec 2025)[1]

Strengths

  • Only elected official in the race who lives in and represents part of the district
  • Progressive record with tangible local accomplishments
  • Historic firsts (Latina, LGBTQ+) could drive coalition support

Weaknesses

  • Minimal fundraising — $12.9K far behind top contenders
  • Limited name ID beyond Vista
  • Progressive platform may struggle in a moderate-leaning district
Sources [1][9] contreras4congress.com
[10] SD Union-Tribune Q&A — Contreras
Stephen Clemons

Stephen Clemons Dem Age 57

Education & Energy Professional • Palm Springs Pragmatic Moderate
Palm Springs resident. Background in education and energy; worked with Gov. Arnold Schwarzenegger. Marine Corps veteran (25+ yrs). Positions himself as a pragmatic problem-solver focused on bipartisanship. One of few candidates living in-district. $0 raised.[11]

Top Issues / Platform

  • Affordability — housing, energy, everyday costs
  • Public safety & border security — enforce existing law, target fentanyl trafficking
  • Fix government — bipartisan results over rhetoric
  • Infrastructure, water, wildfire mitigation, veteran services
  • Reduce homelessness — compassion paired with accountability

Key Endorsements

  • No major endorsements reported
  • $0 raised; no campaign finance activity[1]

Strengths

  • Lives in district (Palm Springs) — unlike several top rivals
  • Moderate, pragmatic pitch could appeal to swing voters
  • Completed Ballotpedia Candidate Connection survey

Weaknesses

  • Zero fundraising — no visible campaign infrastructure
  • No political experience or prior office
  • Extremely low name ID; no path to viability without funding
Sources [1][11] Times-Advocate — Clemons Profile
[12] Ballotpedia — Stephen Clemons
Eric Shaw

Eric Shaw Dem Age 57

Digital Marketing Executive • Temecula Bridge-Builder
Temecula resident (12+ yrs). Digital marketing executive originally from Omaha. Runs as a "pragmatist by nature" — pledges no corporate PAC money and monthly town halls. Detailed policy focus on Colorado River water rights and the affordability crisis. $0 raised.[13]

Top Issues / Platform

  • Public safety — top priority for the district
  • Affordability — groceries, gas, housing
  • Colorado River water rights — operating agreement expires this year
  • Immigration — points-based system like Canada/Australia
  • Climate action — clean energy jobs, protect EPA standards
  • Fight misinformation as threat to democracy

Key Endorsements

  • No major endorsements reported
  • $0 raised; no campaign finance activity[1]
  • Pledges no corporate PAC money

Strengths

  • Lives in district (Temecula); detailed knowledge of local issues (Colorado River, wildfires)
  • Active media engagement — completed candidate questionnaires
  • Moderate, pragmatic tone could appeal to crossover voters

Weaknesses

  • Zero fundraising — no campaign infrastructure
  • No political experience
  • Tough-on-immigration stance may alienate progressive base
Sources [1][13] SD Union-Tribune Q&A — Shaw
[14] OC Register — Shaw Questionnaire
Mike Schaefer

Mike Schaefer Dem Age 87

CA Board of Equalization / Former San Diego Council • San Diego Veteran Politician
Current CA Board of Equalization member (District 4). San Diego City Council (1965–1971) — youngest ever elected at 30. Was Republican until switching to Democrat in 2003. Also on ballot for Lt. Governor. Controversial record: disbarred in two states; ordered to pay $1.83M to former tenants for uninhabitable conditions. $0 raised.[15]

Top Issues / Platform

  • Fight for an affordable America — lower federal taxes and fees
  • Voting rights reform — authored landmark election lawsuits (Sumner v. Sexton, Canaan v. Abdelnour)
  • Reduce money in politics
  • Says he will "support Democratic leadership" — party-line voter

Key Endorsements

  • No major endorsements reported
  • $0 raised for this race; also running for Lt. Governor[1]

Strengths

  • Holds current elected office (Board of Equalization)
  • Authored significant voting-rights lawsuits that changed CA elections
  • Name ID from decades in politics

Weaknesses

  • Disbarred in two states; $1.83M landlord judgment against him for deplorable conditions
  • Only switched to Democrat in 2003 for political convenience (to support Schwarzenegger)
  • Running for two offices simultaneously (CA-48 and Lt. Gov)
  • Zero fundraising; no campaign infrastructure; age and health questions
Sources [1][15] Press Enterprise — Schaefer Profile
[16] SD Union-Tribune — Schaefer Profile
Ferguson Porter

Ferguson Porter Dem Age 43

Small Business Owner / Writer • Palm Springs Progressive Reformer
Palm Springs resident since 2010. Comic book seller and published writer. Son of public school teachers. SMU graduate (2005). Running on structural reform platform: expand the House, reform SCOTUS, end gerrymandering. $62K raised — most among long-shot Dems.[17]

Top Issues / Platform

  • Expand the House to reflect population growth
  • Supreme Court reform — expand Court, term limits, geographic representation
  • End partisan gerrymandering
  • Protect Social Security & Medicare
  • Higher wages, fairer taxes — tax the ultra-wealthy
  • Defend democracy — automatic voter registration

Key Endorsements

  • No major endorsements reported
  • $62K raised; $21.5K COH (Sep 2025)[1]

Strengths

  • Some fundraising ($62K) — more than most long-shot Dems
  • Lives in district (Palm Springs); 15-year resident
  • Clear, distinctive platform focused on structural reform

Weaknesses

  • No political experience
  • Low fundraising relative to top contenders
  • Structural reform proposals (expand Court, expand House) not mainstream
  • Extremely low name ID
Sources [1][17] SD Union-Tribune Q&A — Porter
[18] OC Register — Porter Questionnaire

Race Summary & Outlook

CA-48 is one of the most competitive U.S. House races in the country following Darrell Issa's (R) retirement and Prop 50 redistricting. The district shifted from reliably red to "leans Democratic" (37% D, 33% R). With Republicans holding a razor-thin House majority, this race could help determine control of Congress.[1]

Key dynamics among the 8 Democratic candidates:

  • Marni von Wilpert (42) is the establishment favorite with the most institutional support and the strongest convention delegate showing.
  • Brandon Riker (38) has the largest war chest ($1.5M+) and would be the only trained economist in Congress, but lacks elected experience.
  • Abel Chavez (34, $204K raised) is the only other Democrat with meaningful fundraising and a campaign operation.
  • The remaining five (Contreras 36, Clemons 57, Shaw 57, Schaefer 87, Porter 43) have minimal or no funding and limited visibility.
  • The biggest risk is vote-splitting among 10+ Democratic candidates, which could allow Republican Jim Desmond (Trump-endorsed) to advance alongside another Republican — shutting Democrats out of November entirely.

Likely outcome: Desmond (R) is expected to take one top-two slot. The second slot is a primary battle among von Wilpert, Riker, and Campa-Najjar. Von Wilpert's institutional support gives her an edge, but Riker's spending could change the calculus.

Primary: June 2, 2026 — General: November 3, 2026