Joe Biden's victory in
Alabama was near-guaranteed.
Four years earlier,
Hillary Clinton carried the state with 77.84% against
Bernie Sanders and won every county and congressional district, a feat repeated by Biden.
FiveThirtyEight, which made state-by-state predictions prior to the primaries, gave Biden a 92% chance at winning Alabama, a landslide over Sanders' 5% chance. Aggregate polling from FiveThirtyEight right before election day showed Biden up with 40.2%, Sanders at 18.4%, Bloomberg at 15.9%, Warren at 10.9%, Gabbard at 0.5%, and other/undecided 14.1%.
270toWin had Biden ahead as well with 44.5% of support, 23.5 percentage points ahead of Bernie Sanders at 21%. The week before, Biden swept the
South Carolina primary by a 28.88% margin over Sanders, reviving Biden's candidacy after crushing losses in
Iowa,
New Hampshire, and
Nevada. Additionally, the moderate wing of the primary, consisting of former
South Bend Mayor Pete Buttigieg, Senator
Amy Klobuchar from
Minnesota,
representative Beto O'Rourke from
Texas's 16th district, and Senator
Kamala Harris from
California coalesced behind and endorsed Biden while the progressive wing, consisting of Senators Sanders and Warren, remained fractured. Thus, right before Super Tuesday, Biden's support surged. Biden's best performance, regionally, was in the
Black Belt, a historically Democratic region due to high proportions of African Americans. On the same day, Biden carried all of the other southern Super Tuesday states of
Arkansas,
North Carolina,
Oklahoma,
Tennessee,
Texas, and
Virginia, and his upset victories in
Maine,
Massachusetts, and
Minnesota catapulted him to frontrunner status. He would go on to lose the state in
the general election, but retained his resounding victories among Black voters in the Black Belt.
Exit polls ==Notes==