As the inevitable primary battles heat up, Sen. Bernie Sanders (I-Vt.) took the opportunity on Friday to slam former Vice President Joe Biden's "middle ground" climate change plan that has been crafted with the help of a former aide to President Obama.
Why it matters: Climate change has become one of the most pressing issues as Democratic presidential candidates claw their way to the party's 2020 nomination.
What they're saying: Rep. Alexandria Ocasio-Cortez also berated Biden for his moderate proposal tweeting, calling it "a dealbreaker. There is no “middle ground” w/ climate denial & delay. Blaming 'blue collar' Americans as the main opponents to bold climate policy is gas lobbyist 101. We’re not going to solve the climate crisis w/ this lack of leadership. Our kids’ lives are at stake." Ocasio-Cortez introduced the progressive Green New Deal that other presidential candidates have come out in support of.