(CNN) - John McCain is planning a journey within the next month that will take him to the country's Western Hemisphere neighbors
The itinerary has not been entirely nailed down, but currently includes stops in Canada, Mexico and Colombia.
Those nations have all negotiated trade deals with the United States, although Colombia's agreement – which became a lightning rod during this year's Democratic presidential primaries – has met fierce resistance on Capitol Hill, and has not yet received congressional approval.
Border issues and illegal immigration have been among the most vexing political issues this cycle, especially for McCain. His support for a path to citizenship for illegal immigrants almost fatally wounded his GOP primary bid; it was only after he said "lesson learned" and promised to secure the border first that many Republican voters decided to give him a second chance.
The trip will be McCain's second since effectively claiming the Republican nomination. Earlier this spring, the Arizona senator visited Europe and the Middle East, including a stop in Iraq.