The USA Today focuses on how Arizona citizens voting in multiple states were identified and prosecuted. 

“Vote early and vote often” is a laugh line politicians often invoke as they make a pitch fo people’s support. 

But it’s no laughing matter to a half-dozen former Arizonans, who have been prosecuted for voting twice in past elections.

Thanks
to a data-sharing agreement among 20 states, Arizona can
cross-reference its voter data with other states and ferret out people
who vote more than once in the same election cycle.