I will agree that mistakes and wrong actions can take place. As was stated in that article, it proves the system works. The one man prosecuted here in New Hampshire and the five other cases indicate how seldom this occurs. As for Trumps claim of busloads of voters being brought to NH from Massachusetts, it never happened. In many of the cases I have seen reported it is often a vote for Republicans. I'm sure there are some who voted Democrat as well, The point is how seldom it happens and that false votes are discovered.