This is some great stuff! It seems that electric ratepayers aren't real keen on the possibility that they may be being ripped off to finance front groups, propaganda, "corporate stewardship", hunting groups, PATH's advertising campaign, and other challenged expenditures.
To read the letters, search the FERC docket here. In the Docket Number field, type in ER09-1256 and click submit at the bottom. This will bring up a list of activity related to the Formal Challenge. Happy reading!