As Texans across the state continue to deal with the damage from the mid-February winter storm, so does the political fallout in Austin. So far, seven of the 16 board members of the Electric Reliability Council of Texas have resigned. CEO Bill Magness defended ERCOT’s decision to order widespread blackouts while testifying before a joint hearing of two state House committees last week.  Meanwhile, the Public Utility Commission, which oversees ERCOT, says it has opened an investigation ...