Sims said Sanders will need adjuvant treatment with radioactive iodine and long-term continuing care.
Sanders, who served as former President Donald Trump’s spokeswoman until 2019, is running against Democratic nominee Chris Jones. She is the daughter of former Gov. Mike Huckabee.
Jones and his wife, Jerrilyn, on Friday issued a statement saying their family was thinking of Sanders and praying for her.
Sanders is heavily favored in the predominantly Republican state of Arkansas to win the office currently held by Republican Gov. Asa Hutchinson, who is leaving office in January due to term limits.
She’s run primarily on national issues in the Arkansas race, promising to use the governor’s office to fight President Joe Biden and the “radical left.”