July 4th party invites do seem out of place. From a State Department briefing yesterday:

QUESTION: This isn’t a frivolous question, really. Do you think it’s still appropriate to have Iranians come to these July 4th parties under the circumstances? I mean, is there any thought being given to like, rescinding invitations?
MR. KELLY: No, there’s no thought to rescinding the invitations to Iranian diplomats.
QUESTION: It’s appropriate to have a social dialogue with them if they come?
MR. KELLY: Well, we have made a strategic decision to engage on a number of fronts with Iran, and we tried many years of isolation and we’re pursuing a different path now.
QUESTION: Have they said yes?
QUESTION: The President keeps saying that –
MR. KELLY: I don’t know, Arshad.