Jon, that ballot was approved by the Palm Beach County Supervisor of Elections, the Florida State Supervisor of Elections AND one of the three national companies that are certified to print ballots for the state of Florida. NONE of them caught it.
Stuff like this happens all the time. It just isn't as high profile.
For example, my first ex-wife works for the College of Engineering at the University of Florida as an illustrator. One of her first jobs there was to design a brochure with a tear-off post card for a big engineering symposium. When the job was done, she, her boss, and the Dean of the college were going over the brochure.
Said the Dean,"they just fill out the post card and sent it with their registration fee and that takes care of the whole thing."
"Wait a minute," said my ex,"That won't work."
"Why not?" said the Dean.
"How are they going to sent a check with a post card?" she answered.
If she hadn't caught it...
So you see, it isn't that hard to make that sort of mistake. It happens on all levels.

troll