The watchdog group Election Integrity Maryland claims they have found more than a thousand people on Maryland's voter rolls who are actually dead.
EIM is an advocate for voter identification laws. Its research suggests some people were registered and voted years after their death.
"Out of 11,000 challenges that we filed, 1,500-plus were of deceased voters that have been allowed to stay on the voter rolls," Kathy Kellerher, who is part of the Election Integrity Maryland team, told Baltimore's WJZ-TV.
Kellerher said her team even found a woman in a nursing home with two registrations who doesn't remember voting since 2006.
In response, Maryland Board of Elections Deputy Administrator Ross Goldstein maintained there's no evidence to support that claim. However, he pledged the state will review the others names listed in EIM's report.
Goldstein also said there have been no official allegations of fraud.