I am talking about the 2019 Elections, but you are looking at the Official Exchange, which nobody goes by (or rather should go by) because it is an imposed rate by the Government which they Buy on but LIMITEDLY sell on (limited to basically nothing) so is there for scamming tourists (reason why Google suggests when travelling to Argentina to do your exchanges on the Black Market) not to be representative of the Market
For the actual Value you should always refer to "Dollar Blue" and you can see on that same date the historic change was of 10% (half as much as the post day of this elections)
Granted, i'll give it to you this current decay is lasting longer, but i'd still pass it as unrelated (even normal) considering there's even less faith on our economy than back then and the results being even more polarized being 50/50 on 2019 and here it's 30/30/30, basically a shattered country
And just for finishing off, the last 2 Governments (up to the Kirchner you mentioned) are both Left, the right has not governed Argentina for at least 20 Years now