Call me a cynical old feller, but I call bullshit on the leakers scoop. Not on the reporter, but on the president. If they identified someone why the hell wouldn't they be fired instantly before they could do any more damage? Team Trump hoping whoever it is will panic and do something stupid over the next week while Trump is grabbing orbs overseas. 8D checkers and all that. Unfortunately for the Big Orange Baby literally everyone on earth is smarter than him so I don't think it'll work.
And not to mention firing someone "because they're a leaker" would very likely be a huge kerfuffle if the White House can't prove the allegations. Quietly letting a few people go for no stated reason is the way to go. If you're demolishing the reputation of someone, effectively ending their career in politics, you better be able to back up your case with some serious evidence. Otherwise the ensuing (hee) lawsuits will be legendary.
Either way I'll be out plowing my cornfield getting ready for all the popcorn I'll need.
*all of the above with enormous "I'm not a lawyer and not all that smart in general" grain of salt"