They cheated for Hillary, too, they just didn't cheat enough or in the right places, that is why they went all out with no care as to how unbelievable it was.

but 2020 was a landslide victory.

We don't know that, since the election results are so unreliable that we have no idea how close Biden came to victory. It might have been a landslide, it might have been close. Either way, 8% would easily swing every national election of the last century.