I'll pull together today's top headlines for you.
Most important events and topics in the news today - Tuesday, September 15, 2026:
1. US Politics / Economy - Tariffs and Supreme Court
•The U.S. Supreme Court has struck down a key segment of President Donald Trump's tariffs, saying he exceeded his authority in using the International Emergency Economic Powers Act to justify most of his tariffs. The majority opinion was written by Chief Justice John Roberts.
•In response, President Donald Trump says he's raising a new tariff on imports from all of America's global trading partners from 10% to 15%. The new levy was announced in response to the Supreme Court ruling striking down most of his previous trade tariffs.
•Trump said Saturday that he wants a global tariff of 15%, up from 10% he had announced a day earlier after the Supreme Court struck down many of the far-reaching taxes on imports.
•The administration asserts it will impose 15% global tariffs claiming authority under Section 122 of the Trade Act of 1974, which authorizes temporary tariffs for up to 150 days.
•More than 20 states have challenged the new tariffs, filing a lawsuit arguing Trump is overstepping his power with planned 15% tariffs.
2. US Economy - Federal Reserve Meeting This Week
•The Federal Reserve is scheduled to meet on Sept. 17-18 to discuss its interest rate policies.
•The next Federal Reserve interest rate decision is on Wednesday 16 September 2026, announced at 2:00 PM US Eastern Time, followed by a press conference. The two-day meeting runs 15–16 September.
•Health insurance costs in the United States are on track for their biggest jump in at least five years, with businesses to be hit with an increase of 9 percent or more in 2026.
3. Middle East - US-Iran, Israel-Lebanon, and Persian Gulf
•Top headlines include a possible wind down of the Iran-U.S war; heavy Israel strikes in Beirut, Lebanon.
•A fragile two-week ceasefire between the US and Iran, reopening the Strait of Hormuz - at least for now.
•US attacks on Iran and latest crossfire are threatening a temporary ceasefire agreement.
•The U.S. is fighting to gain control of a key oil route waterway in the Persian Gulf.
•Israel has carried out new strikes on Beirut's southern suburbs overnight and is conducting what they describe as a limited ground operation along Lebanon's southern border. Israel pounded south Lebanon with deadly strikes and widened its offensive with the first raid near Beirut in weeks.
4. US Domestic - Charlie Kirk Assassination Case
•The Federal Reserve decision is not the only Washington story: Utah Gov. Spencer Cox says the suspect in the fatal shooting of Charlie Kirk is not cooperating with authorities, the Federal Reserve is expected to cut interest rates.
•Utah Governor Spencer Cox said the man arrested in the killing of right-wing activist Charlie Kirk is not cooperating with authorities, but investigators are working to establish a motive.
•A Utah judge decided the murder case against Tyler Robinson, the man accused of killing conservative activist Charlie Kirk, will go to trial.
5. Global and Other Topics Today
•OECD to present The Economic Case for Pandemic Preparedness and Response on Tuesday 15 September.
•China's National Bureau of Statistics is due to release August industrial production, retail sales and fixed asset investment data on Tuesday, September 15.
•In the U.S. Senate, the cloture motion with respect to H.R.3633 – Digital Asset Market Clarity Act will ripen on Tuesday, September 15th at 2:15 p.m..
•Other world headlines: Spain wildfires kill several people; another storm is heading to China, and China-based talks to aid Afghanistan-Pakistan tensions.
> For live updates, watch Scripps News live now for top news headlines for Tuesday, September 15 and CNN Live for 24/7 coverage of breaking news.