Shortly after 2am, the Supreme Court issued an order that would allow the Trump administration to proceed with the first federal execution since 2003: https://www.documentcloud.org/documents/6988380-20A8.html

The order isn't signed (it's per curiam), but Justices Breyer, Ginsburg, Sotomayor, and Kagan dissented.

Lawyers for Daniel Lewis Lee, the man scheduled for execution first, immediately went back to the district court to ask for a new injunction on grounds not addressed in yesterday's order (which SCOTUS vacated)

Per that motion, the execution was set for 4am, but no updates yet.

It appears there was also some early morning legal wrangling by Lee's lawyers in the 8th Circuit, where he'd been trying to renew ineffective assistance of counsel claims. The court denied Lee's petition for en banc review

NOW: The Trump administration carried out the first federal execution in 17 years this morning. Daniel Lewis Lee was pronounced dead shortly after 8am EDT after losing a last-ditch effort to delay his execution by lethal injection in court. https://www.buzzfeednews.com/article/zoetillman/trump-administration-carried-out-first-federal-execution