1. United States
2. Calif.
3. Letter

I’m writing to urge you to reauthorize the Cybersecurity Information Sharing Act of 2015 (CISA). This program is scheduled to expire on September 30, 2026, at a time when cybersecurity teams and election-related stakeholders most need reliable, rapid legal pathways to share threat information. CISA helps enable timely sharing of cyber threat indicators and defensive information between private entities and the federal government. When that sharing slows or stops, the ability to detect, investigate, and respond to cyber threats quickly—especially those targeting election infrastructure and public trust—diminishes. Foreign interference efforts increasingly rely on disruption, deception, and delays in response. Reauthorizing CISA is a practical, bipartisan step to keep the “neighborhood watch” for cyber defense functioning and to strengthen resilience as election-related systems and networks face heightened risk. Please support legislation to reauthorize CISA before September 30, 2026.