John Mannion

John Mannion grew up on Syracuse's Tipperary Hill, the grandson of Irish immigrants, with a mother who worked for New York Telephone and a father employed by the railroad.¹ He and his wife, Jennifer, an elementary school teacher and reading interventionist, have three children.¹

Mannion earned an undergraduate degree at Binghamton University and a master's at SUNY Oswego.² He spent nearly 30 years teaching high school science, including AP biology and chemistry, and led the West Genesee Teachers' Association for eight years, representing teachers, nurses and school psychologists.¹ In the state Senate, he became the founding chair of its Committee on Disabilities.¹

He entered Congress in January 2025 and serves on the Education and Workforce and Agriculture committees.²¹ His Protecting Students with Disabilities Act seeks to preserve federal special education programs and expertise.¹ He also helped introduce the Science of Reading Act, a literacy instruction proposal that passed the House in September 2026.³⁴

Mannion faces Republican Kailee Buller while emphasizing public education, workers' bargaining rights, manufacturing and family farms.⁵¹ He also opposes the Trump administration's tariffs and war in Iran, and prioritizes preserving affordable health coverage.⁶ He is an original cosponsor of the Protecting the Right to Organize Act and has also supported legislation to accelerate first contract negotiations for unionized workers.¹