Caracas (AP) - In the power struggle between the government and the opposition in Venezuela, the Attorney General has launched another investigation against the self-appointed interim president Juan Guaidó. The opposition leader harbored the years of efforts by the Venezuelan government to return the resource-rich region Esequibo, it said. He was guilty of treachery. Guaidó had been appointed Transitional Chief of State in January. Many countries have recognized him, others continue to support President Nicolás Maduro.