The main way in which Theodore Roosevelt’s Corollary influenced US foreign policy was that it cast the US in a far more dominant light, since it threatened the use of force against countries that didn't "fall in line".
He was the running mate of Dwight D. Eisenhower, the Republican Party presidential nominee in the 1952 election. Nixon served for eight years as Vice President, becoming the second-youngest vice president in history at age 40.
American jobs would be lost because globalization encourages worldwide distribution of products, which also distributes jobs across the world. For example, Ford Motors almost built a factory in Mexico due to the encouragement by the US government to increase globalization as it would be cheaper.