The D.C. Circuit found that President Trump's construction of the East Wing is unlawful, but has stayed the ruling for two weeks to permit the SG to seek a stay.
Trump probably cares about this construction issue more than tariffs and birthright citizenship combined. If the Supreme Court actually blocks the construction, the President will have a daily reminder outside his window of who cast the fifth vote.
Speaking of the fifth vote, I suspect Justice Kavanaugh, who spent his formative years working in the West Wing, will not vote to block the construction.