Some U.S. lawmakers and officials are touting a nearly half-century-old treaty between the United States and Panama to justify the Trump administration's threat to reclaim the Panama Canal - provided it can show the strategic waterway's operation is under threat.

Secretary of State Marco Rubio says President Donald Trump’s desire to acquire Greenland and retake control of the Panama Canal is driven by legitimate national security interests stemming from growing concerns about Chinese activity and influence in the Arctic and in Latin America.

U.S. Secretary of State Marco Rubio expressed zero doubt that China has a contingency plan to shut down the Panama Canal in a potential conflict with the U.S. Speaking on The Megyn Kelly Show, Rubio emphasized

China's presence around the Panama Canal is a national security concern that Panama's government has to deal with, Mauricio Claver-Carone, the U.S. special envoy for Latin America, said on Friday, ahead of U.