5 Things To Know — Jan. 21: Powerful Winter Storm, Davos Clash Over Greenland, Second Lady Pregnant, Minnesota Subpoenas, Spain Rail Disasters

A powerful winter storm is forecast to sweep across the eastern United States later this week, bringing heavy snow, dangerous ice and what meteorologists say will be the coldest air of the season for millions of people.

Trump Heads to Davos Amid Greenland Pushback: President Donald Trump is scheduled to address the World Economic Forum in Davos, Switzerland, after a brief delay caused by a technical issue that sent Air Force One back to the U.S. shortly after takeoff. In Davos he will face European leaders concerned about his reported interest in acquiring Greenland. Sources tell CNN that some European officials are weighing measures to placate or counter the president’s proposals — including increased military presence in Greenland, new commercial and economic agreements, and limits on Chinese investment in the territory — but Trump has indicated he intends to continue pursuing the issue.

Second Lady Usha Vance Is Pregnant: Second Lady Usha Vance and Vice President J.D. Vance announced Tuesday that they are expecting a child this summer. In a joint social-media statement the couple said, "We’re very excited to share the news that Usha is pregnant with our fourth child, a boy." Usha Vance, 40, stepped back from a high-profile public law practice when her husband took office and has been a frequent presence alongside him. If the pregnancy proceeds as announced, it would be the first time a sitting second lady has given birth while in office.

Justice Department Subpoenas Minnesota Officials: The Trump administration alleges that Minnesota’s Democratic leaders obstructed federal immigration enforcement. The Justice Department issued subpoenas Tuesday to at least five state and local officials — including Gov. Tim Walz and Minneapolis Mayor Jacob Frey — as part of an inquiry into whether local actions impeded federal immigration operations. President Trump has also suggested the possibility of deploying troops to Minnesota under the Insurrection Act, a move that would almost certainly face immediate legal challenges.

Second Rail Disaster Shocks Spain: Spain suffered a second major rail incident within days. A commuter train derailed Tuesday in Gelida, near Barcelona, after a retaining wall collapsed onto the tracks following heavy rains; the driver was killed and 37 people were injured, local officials said. The crash came two days after a collision between two high-speed trains near Adamuz in Córdoba province that killed 41 people. Authorities are investigating both tragedies.

Amazon Sees Tariff-Driven Price Pressure: Amazon CEO Andy Jassy told CNBC that tariffs imposed under the Trump administration may be contributing to higher prices on some Amazon orders. Retailers and many third-party sellers built up inventory ahead of last spring’s tariff rollout, Jassy said, but those inventories were largely exhausted by fall. Some sellers are passing increased costs to customers; others are absorbing the expense or using a mixed approach. Walmart, Target and Home Depot have warned of similar price pressures.

Also In Today’s Briefing: Fifty years after its first commercial flight, the supersonic Concorde is remembered for its engineering and speed; Naomi Osaka made a bold fashion choice at the Australian Open and backed it with a strong victory; cardiologists weigh in on the administration’s nutrition guidance promoting more protein and saturated fat; Netflix revisits the 2002 Elizabeth Smart kidnapping; and Olympic fencer Ibtihaj Muhammad, the first U.S. athlete to compete wearing a hijab, is mentoring the next generation.

Check your local forecast for specific conditions in your area. And if you’ve ever burned yourself on the first bite of a hot dumpling, CNN’s Will Ripley joins Din Tai Fung chairman Warren Yang in Taiwan to show how the restaurant’s famous dumplings are made.

Produced and Edited By: This edition of 5 Things AM was edited and produced by CNN’s Andrew Torgan.

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