By blocking the Strait of Hormuz, the USA needs to extend strain on Iran. As negotiations decline, Trump brags about an assault on an Iranian cargo ship attempting to transit the strait.
https://www.spiegel.de/ausland/strasse-von-hormus-usa-haben-laut-donald-trump-ein-iranisches-frachtschiff-angegriffen-und-geentert-a-68b68ea9-61b5-4469-8507-1b9cae5b8d1c#ref=rss