Alex Wagner takes a closer look at the roots of Donald Trump's fixation of re-taking possession of the Panama Canal and adding Greenland and Canada as new American territories, and whether there is cause for concern in Trump's expansionist inclinations despite the inherent goofiness.

The increasing risk and destruction from climate-related disasters is so plain that in some states where climate-driven fires and storms are especially devastating, some insurers are withdrawing coverage for flooding and fires. Jeff Goodell, climate journalist and author of "The Heat Will Kill You First," talks with Alex Wagner about how climate-driven disasters are forcing a change in how we live.