“last” as in final?
Or “last” as in most recent previous?
"Last", as in, she really and truly is done.
Hillary barely survived the 2016 race. Running against an incumbent president when she's 73 will kill her for sure.
Prospective Democrat candidates need to begin gearing up for the 2020 campaign right now, so this is the moment for Hillary to decide if she's going to try a third time or not.
I think she's made the choice to pass.