If there’s anything that will bring a bipartisan group of U.S. senators together, it’s the topic of abuse in nursing homes and a hearing Tuesday was proof yet again.Abuse deficiencies cited in nursing homes more than doubled in four years, increasing from 430 in 2013 to 875 in 2017, a Government Accountability Office report released Tuesday found. The most common physical and verbal abuse was by staff, at 58%, investigators said.