If I were Trump, I would feed her some false but seemingly sensitive information detailing an imminent strike, and see how fast it takes her to inform the press. After it splashes all the headlines, expose her as a spy and revoke any security clearances she may have.
That has already happened. Operation was underway, but got cancelled. News reports were : “Trump dithered and waffled, changed mind.”
Excellent idea- and as soon as it’s discovered that the info was leaked, announce internal investigations but don’t name names yet- make everyone sweat