A Paralympian vs a former TV news anchor - and other US Senate races to watch

The race may ultimately be the tipping point state that decides which party controls the chamber if, as expected, Alaska is one of the slower states to reach an outcome.

Peltola, a former House member and the first Alaska Native to be elected to Congress, has run on a platform of "fish, family, freedom" and has attacked Sullivan's record as Alaska's natural resources commissioner.

Two-term senator Sullivan, a long-time Marine Corps reservist who also served as Alaska's attorney general, has accused Peltola's campaign of links to an effort to confuse Republican voters which led to a second man named Dan Sullivan entering the race.