US Senator Marco Rubio has urged the Chinese government to engage diplomatically with Iran amid threats to close the Strait of Hormuz, warning that China would suffer the most severe consequences. He added that such a move by Iran would be “another grave mistake” leading to heightened tensions and could amount to economic suicide. Rubio emphasized that the United States has the capability to counter any Iranian blockade, while noting that Iran’s parliament has already passed a motion authorizing the closure of the strategic waterway.