Earlier this year, a project anchored by the state of Kansas reviewed records from 22 states to search for duplicates, flagging some 5 million registration records as potentially problematic. Here's a look at the five states that had the largest share of potential duplicates compared to the state's overall voter registration list:
— Georgia. 510,756 potential duplicates, 8.4 percent of list.
— South Carolina. 245,721 potential duplicates, 7.9 percent of list.
— Kentucky. 243,161 potential duplicates, 7.8 percent of list.
— Colorado. 279,822 potential duplicates, 7.7 percent of list.
— Alaska. 35,557 potential duplicates, 6.9 percent of list.
Source: Office of the Kansas Secretary of State