President Obama’s latest push to curb greenhouse gas emissions has brought a new round of criticism from both sides of the aisle. Twenty-two House members, including Rep. Nick Rahall, D-W.Va., sent a letter to Obama asking him to end his “war on coal,” specifically his New Source Performance Standards that he proposed during his June 25 climate speech at Georgetown University.

The NSPS issued by the Environmental Protection Agency are meant to limit greenhouse gas emissions for new and existing coal-fired power plants, despite Congress’ repeated votes against such regulations.