Sen. Marco Rubio, President-elect Donald Trump's pick for America's top diplomat, is expected to bring his deep hatred of communism and his knowledge of Latin America to reshape U.S. policy in the region. As the first Latino secretary of state, Rubio is likely to pay considerable attention to Latin America, which has been neglected in U.S. foreign policy in recent years. However, his reputation as a national security hawk and his support for Trump's mass deportation plan may alienate some U.S. allies in the region. Rubio's main focus is expected to be Mexico, particularly on trade, drug trafficking, and migration.