The first thing, the Government is not required to notify you they’ve gotten a warrant to gather information about someone under investigation, in fact they never do that.
The reason he needs to think about holding that press conference is don’t give away your defense strategy so the prosecution can respond to it at trial
Remember however unlikely it might be, only one person on the jury needs to be pursued
It may be a case of national interest trumping personal. If those five cities that appear to have decided the last general election, after weeks of counting mail-in ballots, did so by fraudulent means, it’s bigger than Trump’s legal issues.
“the Government is not required to notify you they’ve gotten a warrant to gather information about someone under investigation”
But the warrant is required to be specific, relevant and LIMITED. Sweeping up someone’s entire twitter history, including things that can’t possibly be relevant, like when they clicked the “like” button on someone else’s post, doesn’t meet that standard.