Mexico warns of tariffs, spurns U.S. aid under review by Trump

By Frank Jack DanielMEXICO CITY (Reuters) - An emboldened Mexico hardened its opposition to President Donald Trump on Friday by saying it would retaliate if the United States imposed a border tax and that it can afford to lose financial aid that might be pulled to pay for a border wall.Foreign Minister Luis Videgaray said Mexico could respond to any tax the United States were to unilaterally impose on imports from its southern neighbor to finance the wall with levies on select goods, aimed at U.