The battle over President Joe Biden’s sweeping clean energy plan isn’t over, but there already appears to be a winner–natural gas. The fossil fuel will likely remain a mainstay of America’s electrical grid for some time, according to energy experts and lawmakers. That’s a big disappointment to liberal Democrats and environmentalists. In protests in cities and campuses nationwide, one of them fronted by Senate Majority Leader Chuck Schumer, they made natural gas the new climate villain, replacing coal, the dirtier fossil fuel that’s fading in the states. Climate activists had pinned their hopes on the administration’s proposal to remake the energy industry at breakneck speed. It gives financial incentives to utilities to ramp up the deployment of clean energy sources such as wind and solar and would slow if not stop the expansion of gas-fired power plants. But Sen. Joe Manchin, who controls climate policy as chair of the Energy …