The president-elect's undiplomatic talk in recent days of reclaiming the Panama Canal — and annexing Greenland and even Canada — have some experts comparing his strategy to Nixon's "Madman Theory."

Donald Trump’s imperialist designs on Greenland, Canada and Panama often sound like the ramblings of a chaos agent who views geopolitics and global trade like a real estate shark chasing new leads.

Rep. Brandon Gill (R-Texas) says Canada, Panama and Greenland should be “honored” by President-elect Trump’s ambitions to make them part of the United States. “I think that the people of Panama, I think that the people of Greenland,