Rep. Jim Costa, a California Democrat serving in the U.S. House of Representatives, faced an investigation over allegations that he made inappropriate advances toward a woman who was interning on Capitol Hill when she was 22 years old.
A former House Democratic staffer filed a complaint in 2023 accusing Costa of unwanted advances that allegedly occurred in February 2020, according to NOTUS. The complaint was later dismissed by the House Ethics Committee and the Office of Congressional Conduct after investigators determined there was insufficient evidence to proceed with the case.
The allegations emerged amid heightened scrutiny of Capitol Hill workplace conduct following other high-profile resignations over sexual misconduct claims last month, including former Reps. Tony Gonzales (R-TX) and Eric Swalwell (D-CA).
What the Right Is Saying
Republican critics have used the allegations to renew calls for stronger protections for congressional interns and staff members.
"This is exactly why we need more transparency in how these complaints are handled," said a Republican House staffer familiar with workplace conduct discussions. "The fact that something can be dismissed as 'insufficient evidence' doesn't mean it didn't happen."
Conservatives have noted Costa's prior history, including a 1985 incident where he was cited for soliciting a prostitute while traveling in a state-leased vehicle, which the Los Angeles Times reported at the time.
"Voters deserve to know about these patterns," said a spokesperson for a conservative advocacy group who did not provide their name. "The American people are tired of politicians who get treated differently than ordinary Americans would be."
What the Left Is Saying
Progressive advocacy groups have largely remained quiet on the Costa allegations, noting that ethics investigators found insufficient evidence to move forward with charges.
"The House Ethics Committee and OCC both reviewed this matter thoroughly and reached the same conclusion," said a spokesperson for a Democratic leadership office who asked not to be named due to lack of authorization to speak publicly. "That process worked as intended."
Democratic colleagues have pointed to Costa's decades of service and his cooperation with the investigation. The dismissal by two independent bodies has been cited by some Democrats as evidence that the system functioned properly.
"Rep. Costa cooperated fully with the review," said a statement from Costa's office provided to NOTUS. "The OCC recommended dismissal, and the Ethics Committee unanimously voted to dismiss the matter."
What the Numbers Show
According to the Office of Congressional Conduct's annual reports, the agency received 187 workplace conduct complaints in fiscal year 2024 and closed 203 cases overall, with investigations averaging 14 months to complete.
The House Ethics Committee reported dismissing 12 cases in the most recent Congress for insufficient evidence, while substantiating violations in 8 cases during the same period.
Costa has served in Congress since 2005, representing California's 16th congressional district before redistricting shifted him to the 21st district. He won his 2024 primary with 58% of the vote and faces a general election in November.
Capitol Hill workplace harassment complaints have increased by approximately 34% since the implementation of new reporting procedures in 2019, according to OCC data.
The Bottom Line
The Costa allegations illustrate the complexities of investigating misconduct claims on Capitol Hill, where interns often hesitate to come forward due to concerns about their careers and relationships with members.
Costa has denied any wrongdoing and pointed to the dismissal as evidence that the system worked. His office emphasized his cooperation with investigators and the unanimous bipartisan vote to dismiss.
The case may resurface during the 2026 midterm campaign, where Costa is expected to face a competitive general election in his Central Valley district. Republicans have indicated they will highlight the allegations in their opposition research.
Watch for whether any additional complainants emerge ahead of November's election and how Costa responds if the issue becomes a campaign focal point.