President Donald Trump asserted Tuesday that there is now “complete and total control of the skies over Iran,” though he did not clarify whether he was referring to American or Israeli military operations.

WASHINGTON − President Donald Trump threatened Iran's supreme leader with assassination as he pushed Tehran to give up its nuclear enrichment program and air strikes continued over Iran and Israel.

Lawmakers on both sides of the aisle are looking to limit President Trump's ability to order U.S. strikes on Iran amid its ongoing war with Israel​.

President Trump spent the first months of his term holding back Israel’s push for an assault on Iran’s nuclear program. With the war underway, his posture has gyrated as he weighs sending in the U.S.

President Trump’s social-media posts calling for Iran to surrender without conditions and saying the country had lost control of its airspace used the word “we,” but it wasn’t immediately clear if that meant that the U.

Donald Trump hasn't ruled out U.S. involvement in the current hostilities as the Iran-Israel conflict escalates.

Director of National Intelligence Tulsi Gabbard says she and Trump are on the same page about Iran's nuclear program after Trump made a conflicting statement with a DNI assessment. NBC News’ Monica Alba and Courtney Kube report more.