Polling for write-in campaigns is always challenging, so results should be interpreted with caution. For this survey, Rasmussen Reports asked respondents about a choice between Miller and McAdams without mentioning Murkowski. That is the choice voters will see when they enter the voting booth. However, when response options were offered to survey respondents, Murkowski’s name was mentioned.

Miller picks up a solid majority of Republican voters, while McAdams wins most Democrats. Among unaffiliated voters, the three candidates are essentially even.

Seventy-nine percent (79%) of Miller’s voters say they’re sure they will vote for him and won’t change their minds before Election Day. Seventy-one percent (71%) of Murkowski’s voters say the same, as do 66% of McAdams voters.