@sj_zero 2020 was a bit more of a special case, not only in the amount of fraud but how obvious it was. Having 4 swing states with 4:00 am ballot drops/updates while making sure that any observers they could kick out due to "covid restrictions" were kept from seeing anything.
I also recall in 2008 AL Franken having more votes "found" to win his senate race. So the fraud is definitely been a long running thing.