Within weeks, President Barack Obama’s administration is set to unveil unprecedented emissions limits on power plants across the United States, much to the dismay of many Democratic candidates who are running for election in energy-producing states. Fearful of a political backlash, they wish their fellow Democrat in the White House would hold off until after the voting. But Obama can’t wait that long. Unlike the Keystone XL oil pipeline, whose review the administration has delayed , probably until after November’s elections, the clock is ticking for the power plant rules — the cornerstone of Obama’s campaign to curb climate change. Unless Obama starts now, the rules won’t be in place before he leaves office. If they’re not set when he leaves, it will be easier for his successor to stop them. So even though the action could bolster Republican attacks against some of this year’s most vulnerable Democrats, the […]