The sexual harassment scandal engulfing Gov. Andrew Cuomo escalated Wednesday with the emergence of allegations that he reached under a female aide’s blouse and groped her while they were alone in a room inside the Executive Mansion in Albany. The incident allegedly unfolded after the much-younger woman was summoned to help the 63-year-old governor fix a problem with his cellphone, the Albany Times Union reported. The woman told him to stop, the newspaper said.