Donald Trump’s tariff gamesmanship ran into a legal brick wall on Wednesday when the Court of International Trade ruled that he did not have the authority to impose his sweeping “Liberation Day” import duties. The ruling also applies to fentanyl-related tariffs but does not affect sectoral duties on Canadian automobiles, steel, and aluminum. Markets rallied, the White House plans to appeal the ruling, so uncertainty prevails.
While the White House lawyers are coping with a setback on trade, they pushed forward with another battle that will test the limits of executive power. In a Boston courtroom today, Harvard University will argue that the Trump administration violated the university’s free speech rights when it revoked international student visas. Expect Harvard, home to one of the world’s highest rated law schools, to make compelling arguments, using the president’s words to show he is on an ideological crusade.
Canadian airlines are grounding flights to US destinations as Canadians continue to stay away from the United States in a grassroots reaction to Trump’s threats. In April, return air trips by Canadians fell 20% compared to 2024, Statistics Canada has reported, and automobile trips fell 35%. The decline in visitors is hitting the US tourism industry hard, putting more than 230,000 jobs at risk.
GZERO World heads to the World Economic Forum in Davos, where Ian Bremmer lookst at how President Trump’s second term is rattling Europe, reshaping both transatlantic relations and the global economy, with Finland’s President Alexander Stubb and the IMF’s Kristalina Georgieva.
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How widely is AI actually being used, and where is adoption falling behind? Speaking at the 2026 World Economic Forum in Davos, Brad Smith, Vice Chair and President of Microsoft, outlined how AI adoption can be measured through what he calls a “diffusion index.”
U.S. President Donald Trump holds a bilateral meeting with NATO Secretary General Mark Rutte at the World Economic Forum (WEF) in Davos, Switzerland, January 21, 2026.
After saying numerous times that he would only accept a deal that puts Greenland under US control, President Donald Trump emerged from his meeting with NATO Secretary General Mark Rutte singing a different tune.