Of every single institution designed to protect you.
Every single thing had to go wrong for Trump to get a second term.
That said voter suppression is the primary reason Trump won his second term. Approximately 7 million Americans tried to vote and couldn't. A combination of illegal challenges to signatures and voter registrations and multi-hour wait times to vote in swing States is what made Trump president.
So mind you yes, as fucked up as it is if the Democrats had run a youngish white man Trump probably would have lost because Trump needed everything to go wrong to get his second term.
But that's small potatoes compared to the millions of people denied the right to vote. There's an old saying among the left in america, there are no red States just States where people aren't allowed to vote.