Even some Trump advisers are wary of a military pursuit of Greenland.  Is an off-ramp possible?  —  Flying home this month from an extended Christmas vacation in Palm Beach, President Donald Trump was momentarily taken aback when a reporter asked him about the ice-covered island he's openly trying to annex.

Trump unleashes on Europe  —  With help from Eli Okun, Ali Bianco and Makayla Gray  —  Good Tuesday morning.  This is Jack Blanchard, honored to be marking my own anniversary today — one year of highly caffeinated nights and endless political drama at the helm of this storied newsletter.

EU chief warns there's no going back after Trump's Greenland threats … - Trump's fixation on taking control of Greenland — and his threats to impose tariffs on allies who oppose the move — have jolted European leaders and become the dominant undercurrent of the Davos summit.

It's Sundowning in America  —  A short post.  Today doesn't seem like a day for charts and number-crunching.  —  I had never heard the term “sundowning” before it happened to my own father, yet it's a fairly common syndrome.  In his last few months my father remained lucid and rational — remained himself — during daylight hours.