Sen. Amy Klobuchar Amy KlobucharSocial media platforms put muscle into National Voter Registration Day Battle lines drawn on precedent in Supreme Court fight Sunday shows - Ruth Bader Ginsburg's death dominates MORE (D-Minn.) is joining the ranks of a dozen other 2020 presidential hopefuls in committing to limit fossil fuel donations to her campaign.

Klobuchar announced on Twitter Monday that she would not take contributions over $200 from the fossil fuel industry, including executives, lobbyists or PACs, and would “instead prioritize the health of our families, climate, and democracy over fossil fuel industry profits.”

No money from corporate PACs, DC lobbyists, OR the fossil fuel industry. It’s that simple. pic.twitter.com/HcBg3FmRbX — Amy Klobuchar (@amyklobuchar) May 20, 2019

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The senator joins former Texas Rep. Beto O’Rourke (D), Sen. Bernie Sanders Bernie SandersOutrage erupts over Breonna Taylor grand jury ruling Dimon: Wealth tax 'almost impossible to do' Grand jury charges no officers in Breonna Taylor death MORE (I-Vt.) and others in signing the pledge, which was organized by youth climate group the Sunrise Movement.

“This is essential to show young voters you stand with our generation, not fossil fuel CEOs,” Sunrise tweeted Monday in response to Klobuchar’s signing.

Candidates who have refrained from signing the pledge include California Sen. Kamala Harris Kamala HarrisHarris faces pivotal moment with Supreme Court battle Nearly 40 Democratic senators call for climate change questions in debates Joe Biden has long forgotten North Carolina: Today's visit is too late MORE (D) and former Vice President Joe Biden Joe BidenBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Democratic groups using Bloomberg money to launch M in Spanish language ads in Florida Harris faces pivotal moment with Supreme Court battle MORE (D).

Klobuchar also backs the progressive Green New Deal climate plan and signed on as a co-sponsor to the resolution in the Senate. She has not released any personal climate change action plan, unlike her rivals O’Rourke and Washington Gov. Jay Inslee Jay Robert InsleeBarr asked prosecutors to explore charging Seattle mayor over protest zone: report Bottom line Oregon senator says Trump's blame on 'forest management' for wildfires is 'just a big and devastating lie' MORE (D).