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U.S. House · Updated Oct 9

California's 48th District

Brandon Riker win chance

86%

Typical margin: Riker by 8

Democrat

Brandon Riker 86%Jim Desmond 14%

Who's running

Brandon RikerDemocrat
Jim DesmondRepublican

The numbers behind it

Cook Political ReportAs of Sep 23, 2026Lean D
Money raisedFEC, through Jun 30, 2026Riker $2.3MDesmond $2.3M
Campaign money

Brandon Riker

Raised $2.3M · $21K cash on hand · through Jun 30, 2026 · FEC filing ↗

Jim Desmond

Raised $2.3M · $1.2M cash on hand · through Jun 30, 2026 · FEC filing ↗

Our model reads the two war chests as about even.

Other filers in this race raised $2.2M in total.

Candidates' own committees only, from fec.gov. Third-quarter reports are due Oct 15.

How the numbers moved
  1. Sep 23Cook Political Report: Lean DCook Political Report
  2. Jun 30Jim Desmond had raised $2.3MFEC filing
  3. Jun 30Brandon Riker had raised $2.3MFEC filing
How we got this number

We blend the polling average (when there is one) with the race's fundamentals: past results, incumbency, the national mood and the money. Then we play the election out 40,000 times, with polling misses that move every race together, and count how often each side wins.

90% of the model's 40,000 simulated elections land between R+4.2 and D+20.2.

No public polls yet, so this forecast rests on the fundamentals alone, with a wider range.

Our method ›