Why hasn't the AP called Georgia for Biden? He is up 14K and not many ballots left to count.

[Roisin Ni Fiachra]

2. Maybe this is why:

The AP does not declare a winner of an election that will be — or is likely to become — subject to a mandatory recount. In instances where a recount isn't required by law but a candidate requests one, AP will not call a race if the margin between the top two candidates is 0.5 percentage points or less.

Electoral research conducted by the AP found there have been at least 31 statewide recounts since 2000. Three of those changed the outcome of the election. The initial margins in those races were 137 votes, 215 votes and 261 votes.

Among all 31 recounts, the largest shift in results was 0.1%, in the 2006 race for Vermont’s Auditor of Accounts. This was a low turnout election in which the initial results had one candidate winning by 137 votes. The candidate eventually lost by 102 votes, for a swing of 239 votes.

The average shift in the margin between the top two candidates was 0.019 percentage points.

https://www.wbur.org/news/2020/11/09/explainer-georgia-north-carolina-trump-biden-associated-press-race-calls