David Brower

David Cicilline

David Clegg

David Cline

David Cole

David Corn

David Cortright

David Dellinger

David Elliot

David F. Noble

David Fenton

David Geffen

David Halperin

David Hamilton

David Hartsough

David Hogg

David Irving

David Krieger

David Leonard

David Loebsack

David Montgomery

David P. Barash

David Palumbo-Liu

David Scott

David Suzuki