The UK recently held an election for Mayor of London. Boris Johnson, a Tory crackpot, got elected. Or did he?
The election was counted electronically. It turns out that monitoring screens mostly showed meaningless data, most observers were unable to observe the votes being counted, the company set up to run the election says the machines were probably counting blank ballots, and nobody has been allowed to audit the software.
But hey, it only cost £4.5 million to get a bunch of numbers that might as well have been made up by some guy in a room somewhere.