Noncitizens aren't allowed to vote in federal and state elections, but efforts to remove them from the nation's voter registration rolls have produced more angst than results.
Opponents say the scope of the problem has been overblown; those behind the efforts say they've just begun to look at the problem.
If you're a mail ballot voter, the Denver Elections Division offers a program for tracking your ballot. It sounds a lot like ordering straight from Amazon in a lot of cases.