No no, he is actually correct and I misspoke. He definitely tweeted on purpose (haha) but did he intend to declassify the image or just didn't realize?
According to NBC[1], attempts were made to explain the ramifications to him. At that point, he knew he was declassifying the photo and knew he was revealing what his experts told him shouldn't be revealed. He simply didn't care.
Yes he quite possibly unintentionally revealed US spy satellite capabilities with an otherwise purposeful tweet. I say the not out of niceness to give him the benefit of the doubt, but because he's probably too stupid to understand the implications of what he was doing.
