More than fours years after pleading guilty to charges stemming from the influence-peddling investigation centered on disgraced ex-lobbyist Jack Abramoff, another key figure in the scheme, Michael Scanlon, is set to be sentenced in federal court.U.S. District Judge Ellen Huvelle issued an order Wednesday scheduling Scanlon’s sentencing hearing for Aug. 4. He pleaded guilty in November 2005 to one count of conspiracy to violate federal laws including bribery and honest services fraud.Scanlon, a former spokesman for ex-Rep. Tom DeLay (R-Texas) who opened his own public relations firm, colluded with Abramoff to over-bill Indian tribes for services.