Former surgeon general Richard Carmona (D) conceded Arizona's Senate race to Rep. Jeff Flake (R) on election night. But as first reported by TPM, his campaign is now pointing to uncounted ballots and watching the situation for new developments.

"We're monitoring it closely, and we're going to do everything it takes to make sure every vote gets counted," Carmona spokesman Andy Barr said. 

There are over 300,000 uncounted ballots in Maricopa County, which is home to almost 60 percent of the state's population. Thus far, votes counted later in the process have favored Democrats here. The state might not have all the ballots counted until the end of this week or early next week. 

With 100 percent of precincts reporting, Flake won by about 80,000 votes or 4 percent -- an unusually close race for the reliably Republican state. He remains a very strong favorite; it's incredibly unlikely that outstanding votes would favor Carmona enough to overturn the result.