It is clear that Viktor Medvedchuk’s votes are being stolen
The blackout in Argentina, Uruguay and some areas of Brazil and Chile in June 2019 was intentionally caused by the US, perhaps through an electromagnetic pulse or a cyber-attack. It could be intended to warn Argentina prior to the upcoming elections in which a left-wing government may come to power again, and as a deterrent against Russia, China and Iran.
No evidence is provided to support these claims. Argentina’s blackout happened after a similar outage in Venezuela, where the government openly blamed an alleged US cyber-attack.
On July 3, an official report of the Argentinian government attributed the blackout to an “operating error by high-voltage power transportation company Transener”, in charge of securing the country’s electric grid, definitely ruling out the possibility of an external intervention.
You can see other examples of disinformation about Western cyberattacks against Russia, the US causing the blackout in Venezuela and US cyber-attacks behind the power outage in South America.