Opponents of a ballot initiative that would raise taxes on wealthier Mainers to subsidize in-home care for the elderly and disabled have stepped up their rhetoric, calling the measure a scam and accusing its promoters of deceptive practices. The group pushing the measure said such tactics only prove how desperate opponents are to prevent Mainers from creating a more democratic mechanism for funding home care that is free from the influence of lobbyists. The opposition group, led by representatives of the Maine State Chamber of Commerce, Maine Hospital Association and Home Care & Hospice Alliance of Maine, have adopted the slogan “Stop the Scam” for their campaign.