A controversial donor with ties to prominent Democrats who is under investigation by the FBI may not have the qualifications he claims. The resume of Dr. Salomon Melgen, a Florida-based ophthalmologist and controversial Democratic donor, boasts medical education and experience at Harvard University, Yale University, and the University of Missouri. But none of those schools says it can find any record of Melgen, who claims to be a Harvard alumnus, the former chief resident of the University of Missouri’s ophthalmology department, and a former Yale intern. Questions concerning Melgen’s background are also coming to light. According to his biography, posted...