Axios

The Martin Luther King, Jr. Center for Nonviolent Social Change will mark MLK Day on Monday with "moral reflection and prophetic response" amid uncertainty as President-elect Trump retakes office.

Why it matters: This year, the King holiday and the presidential inauguration fall on the same day — a paradox that civil rights leaders say underscores the nation's deep divide.

Hostages and Palestinian prisoners held in Gaza will be released on Sunday following Israeli cabinet approval Friday of a hostage and ceasefire deal.

Why it matters: Cabinet approval, after seven hours of deliberations, was the final hurdle before the deal could be implemented, beyond a 24-hour period to allow for legal challenges.

Jake Sullivan — with three days left as White House national security adviser, with wide access to the world's secrets — called us to deliver a chilling, "catastrophic" warning for America and the incoming administration:

• The next few years will determine whether artificial intelligence leads to catastrophe — and whether China or America prevails in the AI arms race.

Years of debate, months of procrastination and weeks of panic have brought the U.S. to the brink of banning TikTok — a bipartisan achievement that top politicians suddenly want nothing to do with.

Why it matters: On the eve of his inauguration, President-elect Trump is facing an enormous challenge to his popularity, his executive power and his word. He has vowed to save TikTok — but failed to explain how he can do so without violating U.S. law.

The incoming Trump administration wants regime change in Venezuela, where dictator Nicolás Maduro stole his election, jailed a rival and this month even threatened to invade the U.S. territory of Puerto Rico.

Why it matters: Venezuela under Maduro has been a massive problem for Latin America and the U.S. It's accounted for the largest modern-day migration in the Western Hemisphere — nearly 8 million people have fled Maduro's regime in the past decade.

The Federal Reserve said on Friday that it will quit a group dedicated to addressing the risk climate change poses to the global financial system.

Why it matters: The Fed's exit from the coalition suggests a huge pivot underway relative to years past. As President-elect Trump readies to take office, it is more obvious than ever that the political winds have shifted.

President-elect Trump spoke Friday with Chinese President Xi Jinping by phone just days before the U.S. presidential inauguration.

Why it matters: Trump said last month he exchanged messages with Xi after winning the election but didn't confirm they spoke. The president-elect has promised to implement aggressive tariffs on imports from China and could also be forced to determine the fate of TikTok upon taking office.

The Supreme Court on Friday upheld a law that could ban TikTok in the U.S.

The big picture: The court unanimously rejected TikTok's claims that the law violates the First Amendment.

China's ByteDance has called America's bluff on the future of TikTok, and it's beginning to look like a smart bet.

State of play: U.S. politicians from both parties are scrambling to save the app's availability, despite having previously supported a ban.

Chinese AI makers have learned to build powerful AI models that perform just short of the U.S.'s most advanced competition while using far less money, chips and power.

Why it matters: American policies restricting the flow of top-end AI semiconductors and know-how to China may have helped maintain a short U.S. lead at the outer reaches of the AI performance curve — but they've also accelerated Chinese progress in building high-end AI more efficiently.

The deal between Israel and Hamas to release hostages being held in Gaza and begin a ceasefire was officially signed by negotiators in Doha on Thursday, according to two sources familiar with the issue. But the Israeli government isn't expected to vote on it until Saturday night.

Why it matters: The delay in the vote will postpone the start of the ceasefire and the release of the first three hostages from Sunday to at least Monday, according to Israeli officials.

China's leader Xi Jinping is sending a top envoy to attend President-elect Trump's inauguration in Washington, D.C., on Monday, Beijing confirmed.

Why it matters: The "unprecedented" deployment of Xi's special representative, Vice President Han Zheng, is intended to reduce tensions with the U.S. after Trump threatened to impose major tariffs on China and other countries, per the Financial Times, which first reported the news.