MEXICO CITY (Reuters) - Mexico’s foreign minister Luis Videgaray will travel to Washington on Tuesday to meet with senior U.S. officials and to attend a meeting at the Organisation of American States (OAS), his ministry said in a statement. The meetings with Secretary of State Rex Tillerson and Secretary of Homeland Security John Kelly are aimed at furthering the bilateral and regional agenda between Mexico and the United States, the Mexican foreign ministry said.  In recent weeks, Mexico has taken an assertive role in the OAS in relation to the political and economic crisis in Venezuela. 