"I can no longer...satisfy the Citizens of Atlanta and the world that those ballots are secure."

[Botany]

5. Weren't all the votes in Fulton County recounted by hand with a pro Trump observer watching the count?

Trump wants to be like Stalin, Hitler, and Korea’s Dear Leaders in rewriting history.

The real history: From wiki

During the phone call, Trump maintained falsely that he had won Georgia by "hundreds of thousands of votes", insisting that the certified election results were wrong.[48] He said that Raffensperger should "reevaluate" the election's results, citing a variety of different conspiracy theories regarding voting in the state. Raffensperger, in response, answered that the election results in that state were correct and legitimate, and that Trump "had got his data wrong". During his attempts to pressure Raffensperger into changing the election results, Trump said, "I just want to find 11,780 votes", the minimum number needed to overcome Biden's advantage in Georgia. Trump also tried to intimidate Raffensperger, hinting that Raffensperger and his attorney could face a possible criminal investigation. Trump said, "You know, that's a criminal offense. And you know, you can't let that happen. That's a big risk to you."

https://en.wikipedia.org/wiki/Trump%E2%80%93Raffensperger_phone_call