Colorado Public Radio: Every election, Colorado counties mail more than 3 million paper ballots to registered voters. 

If you’ve voted here before, you know it’s a relatively straightforward process: You open your envelope, choose your candidates, close your envelope, sign it and drop it off. Then, on election night, the results come out. 

But what happens to your ballot in between? And how are county officials making sure only legitimate ballots are counted in this process? 

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