Davos updates: Trump speech looms as Greenland threats fuel global tension

On the schedule for Wednesday: Citadel CEO Ken Griffin, BlackRock CEO Larry Fink, Microsoft cofounder Bill Gates, Nvidia chief Jensen Huang, JPMorgan CEO Jamie Dimon, White House AI and crypto czar David Sacks, and Salesforce CEO Marc Benioff.

Trump ran into some travel trouble en route to Davos late Tuesday. He was forced to switch from Air Force One to a backup plane after an electrical fault was detected on board. Flight maps show Air Force One making a U-turn over the waters off Long Island, then landing back in Washington, D.C.

The president is now back on the road and on his way to Switzerland.

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The police in Zurich deployed a water cannon after anti-Trump protests got chaotic, according to multiple reports from local media outlets.

Videos from the scene showed protesters holding up banners, including one that read: "TRUMP NOT WELCOME."

Zurich is a two-hour drive from Davos. It's likely that the president will face much less resistance at the ski resort, where executives are clamoring to meet him.