This is a country founded by immigrants and built on their hard work and dedication to the idea of a country created for the people and by the people. But America's current immigration problems have become a threat to our economy and our national security. We must crack down on illegal immigration and those who employ illegal aliens without threatening the American dream for those who play by the rules. I have long supported legislation to secure the U.S. – Mexico border, including prohibiting the creation of a NAFTA Superhighway and toughening up immigration laws. Legal immigration is good for our country but we must be watchful of those that try to take advantage of our system in order to keep our families and friends safe.