Weird, the only people in the world who really wanted the negotiations canceled and had nothing to gain from them were the Israelis. Ah well. Must be a coincidence.

At first I read that as “US not truly serious about democracy” and well …

Several commenters here seem to be reading the headline backwards.

US Not ‘Truly Serious About Diplomacy’

as demonstrated by

Trump Cancels Kushner-Witkoff Trip

It’s Iran accusing the US of not being serious, not the other way around.

“They’re not sending their best”

Well,is he serious?