Thanks Lee for the eye opening account of further electoral fraud.
The first element of electoral fraud in all countries is allowing big business to make donations to political parties.
The second element is the technologically backward systems that most countries use that allow the fraud at election counts. Plus the fact that people are people and they make mistakes.
Besides, Brazil there are other countries using the blockchain for keeping an accurate and immutable record of voting .
In Estonia, they have a public blockchain called X-Road which holds,
''data that relates to taxes, medical records, voting records, digital identities, residency information – almost all facets of life.
In Estonia, the distributed ledger gives people more control over their data, and it disempowers a central authority to control said data.''

Sounds good to me. I am a technobic luddite and don't even own a smart phone but it seems blazingly obvious we should conisder solutions that can prevent election fraud.