Should note, another injunction relating specifically to the USPS rulemaking directive (Section 3) in the executive order remains in effect.
USPS has said a final rule will publish Wednesday, but not go into effect as long as that injunction is in place.
The Supreme Court will allow the Trump administration to move forward, at least for now, with implementing an executive order that would impose new restrictions on mail-in ballots.
The court finds states didn't have standing to sue. All three liberal justices dissent.