Sen. Ted Cruz and Attorney General Ken Paxton denounced a new federal emissions regulation as illegal, expensive and pointless Thursday during an energy conference organized by the Texas Public Policy Foundation.The Environmental Protection Agency's new regulation, known as the Clean Power Plan, was finalized last month and immediately challenged in court by 26 states and an array of companies and associations in the energy industry."The regulation is neither clean nor does it have anything to do with power, other than the Obama Administration's power to harm our energy production," Cruz, a Republican, said in a taped message. "The CPP would,...