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NewsKPBS Public MediaJuly 29, 2026San Diego

New Poll Shows Tight Race for California's 48th Congressional District

A recent poll conducted by Lake Research Partners shows a statistical tie between Democrat Marni von Wilpert and Republican Jim Desmond in the race for California's 48th Congressional District. The poll, which surveyed 500 likely voters, indicates the race remains highly competitive as both campaigns prepare for the general election.

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Why It Matters

The outcome of this race in California's 48th District is one of several contests that will determine which political party holds the majority in the U.S. House of Representatives for the 2027-2028 term.

Key Facts

  • The poll surveyed 500 likely voters.
  • 48% of respondents chose Marni von Wilpert, while 46% chose Jim Desmond.
  • 6% of respondents remain undecided.
  • The poll has a margin of error of 4.4%.
  • 38% of respondents said they 'strongly support' Jim Desmond, compared to 36% for Marni von Wilpert.
  • The 48th District was redrawn under Proposition 50 to favor Democrats.
  • The current incumbent, Darrell Issa, is retiring and endorsed Jim Desmond in March.
  • The poll was conducted by Lake Research Partners, a firm with ties to the Democratic Party.

Who's Mentioned

personJacob Ostacher“Campaign manager for Marni von Wilpert.”personJim Desmond“Republican candidate for California's 48th Congressional District and County Sup”personMarni von Wilpert“Democratic candidate for California's 48th Congressional District and San Diego ”personSam Oh“Campaign consultant for Jim Desmond.”organizationLake Research Partners“Democratic polling and research firm that conducted the survey.”personDarrell Issa“Current incumbent who chose to retire and endorsed Jim Desmond.”personThad Kousser“UCSD political science professor providing analysis on the poll's margin of erro”