The Trump administration calls this an "economic D-Day" on Iran. Iran vows to respond to fresh sanctions in a "seismic manner."

(Image credit: Julia Demaree Nikhinson)

Iran's new security chief warns the country will retaliate in a "seismic manner" against President Trump's plans to increase economic pressure on Tehran.

NPR's Leila Fadel speaks with Iran analyst Karim Sadjadpour about the Trump administration's threats to impose new economic restrictions on Iran.

With military and diplomatic means to end the war with Iran stalling, Treasury Secretary Scott Bessent is set to explain a new round of economic pressure measures on Iran Monday.