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CNN explores how hydrogen vehicles could help power a more sustainable tomorrow.

America is on the brink of an economic and societal crisis, warns former Indiana Governor Mitch Daniels. "When you're a passenger in the car heading over the canyon wall, what you don't want is somebody putting it on cruise control or stepping on the gas. You want somebody to turn the wheel. Right now, we don't have leadership that shows any indication of willingness to do that."

Even though he believes Trump to be "an astoundingly dangerous candidate for president," Harvard Law School Professor Lawrence Lessig says SCOTUS must unanimously reject the Colorado challenge to keep Trump off the ballot. "This is a principle about limiting the scope of judicial power," Lessig says, "not...about limiting the reach of the Constitution."

CNN's Victor Blackwell talks to Navajo Nation President, Buu Nygren, about the nation's objection to land human remains on the moon.

With 5 mass shootings in first 5 days of 2024, even as homicides decline overall, study by advocates says stricter gun laws would save thousands of lives.

An Alaska Airline plane lost a window panel mid-flight, which led to an emergency landing. CNN transportation analyst Mary Schiavo explains what happened and why this is a "very big deal."

Even if Trump loses his immunity claim, he can wait three months before appealing to SCOTUS - which would be after the nomination process is nearly over. "There are real questions now about the timing," Elie Honig tells CNN's Michael Smerconish. "I see a drop-dead date [of] mid to late July."

Yemen's Houthi rebels have been attacking commercial shipping in the Red Sea. CNN's Laila Harrak speaks with Hisham Al-Omeisy with the European Institute of Peace.

CNN's Nic Robertson looks at U.S. Secretary of State Antony Blinken's trip to the Middle East as tensions grow in the region.

CNN's Lynda Kinkade speaks with Natasha Lindstaedt, a Professor of Government at the University of Essex, about the U.S. Supreme Court agreeing to review the Colorado decision removing Donald Trump from the ballot.

CNN meteorologist Allison Chinchar explains what the eastern US can expect as winter storms approach.

The U.S. Supreme Court said it will review the Colorado Supreme Court's unprecedented decision removing former President Donald Trump from that state's ballot.

Ukraine claims it has destroyed a Russian stronghold in Russia's Belgorod region. Laila Harrak speaks to Barbie Nadeau about the latest developments in Russia's war with Ukraine.

Israeli Defense Minister Yoav Gallant has proposed a post-war plan for Gaza, as internal political divisions emerge in Israel.

An Alaska Airlines flight made an emergency landing in Portland, Oregon after a window popped off mid-flight.

Israel has intensified its airstrikes and ground combat in central and southern Gaza. CNN's Jeremy Diamond reports.

UNICEF says that Gaza's children face a triple threat from the intensifying conflict, malnutrition, and disease. And the U.N.'s emergency relief chief says famine is "around the corner" as people in Gaza face the "highest levels of food insecurity ever recorded."

Michael Holmes reports on what's at stake in Sunday's election as millions of people in Bangladesh are set to vote.

During his tour, U.S. Secretary of State Antony Blinken is set to discuss the next phase of Israel's military campaign, and plans for Gaza after the fighting is over. CNN's Nic Robertson reports.

The IDF says a number of launch pads used for firing rockets at Israeli territory were struck in Khan Younis, Gaza. Israel's military also released video allegedly showing one of seven Hamas tunnels beneath a hotel in northern Gaza, accusing Hamas of using them to conduct "attacks both above and below ground."