Trump says Iran can still "make a deal" but I'd love to understand why he thinks Iran would engage again given he just admitted he was negotiating in bad faith, lulling them into believing he was prioritizing diplomacy when he was in fact jointly planning the attack with Israel.
An additional layer of irony is of course the fact that Trump is the same guy who unilaterally tore up the last deal Iran made with the US, thereby proving that even if Iran does make a deal it simply isn't worth the paper it's written on.
Anyone with a modicum of intellectual honesty can only conclude that Trump's renewed call to Iran to "make a deal" after all this is either completely delusional or disingenuous.
And that far from deterring Iran to build a nuclear weapon, America's behavior can only reinforce their belief that it is actually their only reliable option.
Also this isn't only about Iran. Wonder why the U.S. hasn't managed to negotiate virtually any deal lately, be it with Russia or as part of Trump's trade war? You've got your answer right there: if a car salesman has a reputation for selling lemons, no-one anywhere believes their sales pitch.
Trust and credibility are the single greatest currencies in international affairs and in that regard the U.S. is diplomatically bankrupt.