Maybe, but I am more familiar Russian elections. Personal experience.
Also important note: election fraud != voting fraud. Voting fraud is just one type of election fraud. In Russia most widespread type of election fraud is not registering candidates.
Comparing Russian elections to US elections may as well be comparing Vichy France elections to US elections. They are quite different beasts.
Maybe, but I am more familiar Russian elections. Personal experience.
Also important note: election fraud != voting fraud. Voting fraud is just one type of election fraud. In Russia most widespread type of election fraud is not registering candidates.