Public Research Summary
Mark Stewart Greenstein is a Democrat candidate for U.S. House in CT-01 in the 2026 election cycle.
Source Posture
OppIntell has 29 public claims associated with this profile, including 29 valid citations and 29 primary-source references.
Official Receipts
FEC totals for the 2026 cycle report that Mark Stewart Greenstein reported $0 cash on hand.
Source: api.open.fec.gov retrieved Jun 30, 2026
Mark Stewart Greenstein is listed by the FEC as a Democrat candidate for U.S. House in CT-01 in the 2026 election cycle.
Source: api.open.fec.gov retrieved Jun 30, 2026
Mark Stewart Greenstein was an Amigo Constitution Party candidate for Governor of Connecticut in 2018.
Source: api.firecrawl.dev retrieved May 13, 2026
Mark Stewart Greenstein lost the general election for Governor of Connecticut on November 6, 2018.
Source: api.firecrawl.dev retrieved May 13, 2026