The Green New Deal, which in the past month has come to define the progressive cause in Washington, exists in its most authoritative form as an eleven-page Google Doc. The document was written over a single December weekend by the staff of the freshman representative Alexandria Ocasio-Cortez and three like-minded progressive groups, none of which existed two years ago: the Sunrise Movement, a grassroots climate organization; the Justice Democrats, which recruits and supports progressive candidates; and an upstart policy shop called the New Consensus. Just about everyone involved was new to lawmaking. “We spent the weekend learning how to put laws together,” Ocasio-Cortez’s chief of staff, Saikat Chakrabarti, told me. “We looked up how to write resolutions.”