Populist outrage is threatening to undo a controversial effort by the FCC to loosen restraints on media megaliths. In the Senate last week, seven Republicans joined 28 Democrats to schedule a rare "resolution of disapproval" to overturn new FCC rules that would let companies like News Corp. and Viacom expand their media holdings in local markets. Then in the House, defecting Republicans fueled a 40-to-25 committee vote to reverse part of the FCC's action.
Now it appears that the chief architect of those rules, FCC chairman Michael Powell, may not stick around for the fight. According to industry sources, the son...