"Sharing classified documents...". That's a very complicated issue. If those documents put (innocent) people and national safety in risk he is in a very hard to defend position.
Hmmmm which innocent people and whose national safety?
The way I recall leaks from the US in Iraq and Afghanistan, the leaks typically depicted the U.S. killing or torturing innocent people. Sure, it's plausible they might have made some soldiers less safe.
But innocence is not so cut and dry. You can't only look from one perspective and see the whole picture.
https://www.courts.act.gov.au/supreme/judgments/r-v-mcbride-...