Observers are closely monitoring the activity of Gov. Chris Christie this week as arrives in Mexico today for a trade mission.

Gov. Chris Christie with Ambassador Wayne and Ambassador Fuentes in Mexico (@GovChristie via Instagram)

The trip serves as an international test for the governor as he mulls a White House bid.While the mission is important to help nurture and grow the state's $3 billion dollar export business with Mexico, everybody knows this is about more than trade.

Recent reports suggest that Christie has been weak on foreign affairs issues, so this week offers an opportunity to prove he can handle international relations.