evidence: What's new: Sen. Kamala Harris has offered full-throated support for the Green New Deal, using phrasing that's less equivocal than prior statements from her office. "I support a Green New Deal. Climate change is an existential threat to all of us, and we have got to deal with the reality of it," she said on Twitter late Monday night. [...] It's a sign that Harris and some other backers are comfortable weaving energy and global warming into the fabric of their economic pitches. Even the term is a nod to the left with its callback to FDR.