"Rejecting Tehran’s conditions, the U.S. president warned that if Iran failed to adhere immediately and unconditionally to the original text of the memorandum, Washington would reactivate tougher options and its maximum-pressure campaign.
The publication of those statements in the midst of the Lucerne meeting delivered the final blow to the negotiations. The Iranian delegation viewed Trump’s remarks as an open violation of Article Two of the Islamabad Memorandum, which prohibits any form of verbal threat."
If you deny this happened, then say so in a top-level comment and give reasons why we shouldn’t trust this article.
"Rejecting Tehran’s conditions, the U.S. president warned that if Iran failed to adhere immediately and unconditionally to the original text of the memorandum, Washington would reactivate tougher options and its maximum-pressure campaign.
The publication of those statements in the midst of the Lucerne meeting delivered the final blow to the negotiations. The Iranian delegation viewed Trump’s remarks as an open violation of Article Two of the Islamabad Memorandum, which prohibits any form of verbal threat."
If you deny this happened, then say so in a top-level comment and give reasons why we shouldn’t trust this article.
https://www.pbs.org/newshour/politics/vance-says-talks-with-iranian-officials-set-good-foundation-for-a-deal-to-end-the-war?hl=en-US#%3A~%3Atext=Trump+did+not+attend+what+was+dubbed%2Cnotion+that+Trump's+threats+complicated+the+talks
From the article you posted:
"The talks were jolted by statements from Trump, who, from thousands of miles away, fired off comments that offended the Iranians.
Iranian state media said talks had paused after the “publication of an insulting message by the U.S. President.” The negotiations later continued."
So it did in fact happen, but despite the geriatric manchild torpedoing his own begged for peace negotiations the adults in the room recovered.