BY WHAT AUTHORITY?
Pwlosi and Schumer are not in the chain of command of executive branch agencies.
If they wish to affect the declassification of information, pass veto overriding legislation to that effect.
Or their best option: STFU. Really. Can anyone say "accessory after the fact" or Obstruction of Justice?
I knew you could.'
Who neds Russians to collude with when there are Democrats to carry the hammer and sickle?