Unless it's a scandal directly tied to Trump and constantly promoted by the left and their willing mouthpiece, the MSM, most scandals blow over in DC as soon as the next one comes along. His Orangeness knows this and plans to extract maximum bang from his declassification pen.
Those of us on the right who are keenly aware of every new detail that comes out about the political and likely illegal nature of the FBI's surveillance of Team Trump both before and after his election, need to remember that the average American, if asked about the biggest scandal in DC today will likely name Stormy Daniels, Michael Cohen, or kids in cages, IF they name anything at all.
I long believed that Trump would declassify in order to insure a red wave in November, and he still might, though that's looking less likely. I think he either believes the House is safe from a dim takeover, or he's keeping that powder dry for the bigger fight, perhaps one that will involve Bueller and the Supreme Court.
Prove that the entire reason for appointing a special counsel in the first place was based on, shall we say, trumped up charges generated by illegal surveillance of American citizens and directed by the administration of a sitting president against his political opponent, and you've got a pretty powerful case to agrue before the Supremes.
Of course, doesn't hurt that you've been able to stack the Supremes in your favor. Elections matter suckers.