Democratic presidential hopeful Rep. Tulsi Gabbard Tulsi GabbardRepublicans call on DOJ to investigate Netflix over 'Cuties' film Hispanic Caucus campaign arm endorses slate of non-Hispanic candidates Gabbard says she 'was not invited to participate in any way' in Democratic convention MORE declined Wednesday to back the "Green New Deal," citing “concerns” about it.

“I have some concerns with the Green New Deal, and about some of the vagueness of the language in there, so have not co-sponsored the legislation,” the Hawaii congresswoman said when asked about the progressive plan to rapidly shift away from fossil fuels to fight climate change.

Gabbard’s position on the nonbinding resolution from Rep. Alexandria Ocasio-Cortez Alexandria Ocasio-CortezHouse passes bill to avert shutdown Trump attacks Omar for criticizing US: 'How did you do where you came from?' The Memo: Dems face balancing act on SCOTUS fight MORE (D-N.Y.) and Sen. Ed Markey Edward (Ed) John MarkeySchumer: 'Nothing is off the table' if GOP moves forward with Ginsburg replacement Democrats see fundraising spike following Ginsburg death Democratic senator calls for eliminating filibuster, expanding Supreme Court if GOP fills vacancy MORE (D-Mass.) is a contrast from her position three months ago.

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She spoke at a Capitol press conference in November to support the Green New Deal, alongside Ocasio-Cortez, other Democrats and youth activists.

“I am proud to stand here together with our friends, our allies, our colleagues, to fight for a green energy economy, the [Off Fossil Fuels] Act, other legislation that is there and a Green New Deal,” she said at the time.

The Green New Deal was then a draft resolution that called for the creation of a special House committee that would write legislation to eliminate fossil fuels from most of the economy in 10 years, provide a universal jobs guarantee, universal health care and other policies.

The latest iteration, as introduced by Ocasio-Cortez and Markey, would set a goal of net-zero greenhouse gas emissions in the United States, which would effectively mean an end to fossil fuel use in the next decade or so.

Nearly all of the Senate Democrats running for president have backed the Green New Deal. But Gabbard isn’t the first Democrat to criticize the it.

Former Rep. John Delaney John DelaneyCoronavirus Report: The Hill's Steve Clemons interviews Rep. Rodney Davis Eurasia Group founder Ian Bremmer says Trump right on China but wrong on WHO; CDC issues new guidance for large gatherings The Hill's Coronavirus Report: Kansas City Mayor Quinton Lucas says country needs to rethink what 'policing' means; US cases surpass 2 million with no end to pandemic in sight MORE (D-Md.), a long-shot presidential candidate, called the proposal “about as realistic as Trump saying that Mexico is going to pay for the wall.”

Sen. Joe Manchin Joseph (Joe) ManchinThe Hill's Morning Report - Sponsored by Facebook - Trump, GOP allies prepare for SCOTUS nomination this week Trump meets with potential Supreme Court pick Amy Coney Barrett at White House Names to watch as Trump picks Ginsburg replacement on Supreme Court MORE (D-W.Va.) called it a “dream” in a CNN interview last week.

“You can't just be a denier and say ‘I'm not going to use coal, I'm not going to use natural gas, I'm not going to use oil,’ ” he said.