At least 400,000 votes were still uncounted as of Friday morning, according to The Associated Press. Maricopa County — the state's largest — leans Democratic. About 375,000 votes were outstanding in the county as of Thursday night, according to the AP.
McSally, a second-term representative who has gone through drawn out vote counts in her previous campaigns for Congress, made light of the process in a tweet Thursday morning. The 52-year-old's campaign shared a picture of her sitting in a dentist's chair.
"Woke up this morning dreading a long and painful process. I've been here before, and now, here I am again…the dentist's chair," she wrote.
On Wednesday morning — when returns still showed her trailing — Sinema expressed optimism about the race. The 42-year-old Democrat's campaign tweeted that "there are a lot of outstanding ballots — especially those mailed-in — and a lot of reasons to feel good!"
Counting the remaining ballots could take well into next week. Drama is expected to persist in both Arizona and Florida, where the Senate race appears headed for a recount. Republican Florida Gov. Rick Scott narrowly leads Democratic Sen. Bill Nelson but has accused Democrats of trying to steal the election. He has not mentioned specific allegations of wrongdoing.
In Arizona, the GOP lawsuit prompted criticism from at least one prominent Republican. Cindy McCain, widow of the state's longtime Republican Sen. John McCain, tweeted at the Arizona GOP saying "I am one of those mail in ballots."
"I was under the impression my vote was always counted," she added.