What are the 10 biggest news stories from today?

I'll pull today's biggest headlines for you — gathering the top stories from September 15.

10 Biggest News Stories for Today - Tuesday, September 15, 2026

Based on wire services, broadcast headlines and agency alerts for Sept. 15:

1. Trump issues overnight ultimatum to Iran over Strait of Hormuz
U.S. President Donald Trump is threatening that a “whole civilization will die tonight” if Iran fails to meet his latest deadline to strike a deal that includes reopening the Strait of Hormuz. The president insisted the deadline is final and will expire at 8 p.m. in Washington.

2. Iran re-imposes restrictions on Strait of Hormuz
TEHRAN, Iran (AP) — Iran has reimposed restrictions on the Strait of Hormuz, accusing the US of violating deal to reopen it.

3. Trump raises global tariff plan to 15% after Supreme Court defeat
President Donald Trump on Monday threatened countries around the world to abide by any tariff deals they agreed to despite the U.S. Supreme Court ruling that struck down many of his far-reaching taxes on imports. And he said he wants a global tariff of 15%, up from 10% he had announced immediately after the ruling.

Background: The court’s Friday decision struck down tariffs Trump had imposed on nearly every country using an emergency powers law. The Supreme Court ruled 6-3 that IEEPA does not authorize the President to impose tariffs.

4. U.S. warns shippers not to pay Iran for Hormuz transit
The United States is warning shipping companies they could face sanctions for making payments to Iran to safely pass through the Strait of Hormuz.

5. Iran said to limit Hormuz traffic to 15 ships per day
Iran will allow no more than 15 vessels a day to pass through the Strait of Hormuz under its ceasefire arrangement with the United States, according to a senior Iranian source cited by Russia’s TASS news agency. The Strait — handles about 20% of global oil.

6. Indirect U.S.-Iran talks continue in Oman
MUSCAT, Oman (AP) — Iran and the United States have held indirect talks in Oman. Separately, Iranian Foreign Minister Abbas Araqchi said Iran and Oman were “very close” to agreement on a new shipping route through the Strait of Hormuz but that reopening the strait depended on other conditions, including U.S. compensation to Iran.

7. Lebanon-Israel 10-day ceasefire begins
BEIRUT, Lebanon (AP) — A 10-day ceasefire announced by U.S. President Donald Trump and agreed on by Lebanon and Israel has started.

8. Iran missile fire toward Gulf states reported
CAIRO (AP) — Iran has fired ballistic missiles and drones toward Bahrain and Kuwait.

9. EU approves €90bn loan for Ukraine
Ukraine says it has resumed pumping Russian oil through a pipeline into Hungary and Slovakia, bringing to an end months of deadlock over a €90bn (£78bn) loan seen as vital European Union support for Kyiv.

10. U.S.-Canada trade war escalation takes effect today
Trump responded by issuing five proclamations that amend the Section 338 tariffs effective September 15, 2026. Tracker shows: Section 338 Canada | 50% | $22 billion | Delayed to August 22, 2026, modified effective September 15, 2026.

Live coverage today is being carried as "LIVE: Sept. 15 — Breaking News & Top Headlines" with Tuesday, September 15 headlines