It's unclear how the issue of ownership of the Panama Canal became a talking point for President-elect Donald Trump this week, but the question has a long political history.

I examine what is happening with President-elect Donald Trump’s transition to the White House. This week: Trump’s talk of reclaiming the Panama Canal, acquiring Greenland, and

President-elect Donald Trump has once again repeated his desires for U.S. territorial expansion. In a message delivered on Christmas Day, Trump took aim at the Panama Canal and Greenland, while also addressing Canadian Prime Minister Justin Trudeau directly.