out. john. brianna keilar in new hampshire. chris christie speaks at the washington conference on the americas which brings together government and diplomatic officials with business and policy leaders. the governor is the only state official to speak. he visited canada and mexico on trade missions last year. this could be seen as an effort to beef up his foreign policy. jeb bush is headed overseas to visit poland and estonia in june. bush wants to get a first hand view of the economic and security challenges. the former governor will declare his white house candidacy after the trip. vice president biden called ukraine president petro poroshenko on monday over the humanitarian aid.