Federal officials are investigating an allegation of misconduct at a Veterans Affairs hospital in Cincinnati, Ohio, the latest problem for a scandal-plagued agency that has become a punching bag in the Nov. 8 presidential election campaign. In 2014, a cover-up of long wait lists and shoddy medical care for veterans at a hospital in Phoenix, Arizona, embarrassed the Obama administration and was seized upon by Republicans in that year's congressional elections. The Department of Veterans Affairs on Saturday confirmed the latest investigation but provided no details about the allegation.