Definition: In this task, you are given a statement spoken by a politician in natural language. Your task is to generate the subject of the discussion for the given statement. The subject generated is not necessarily a part of the given input. Your answer should contain one or more words.
Input: On immigration reform, Marco Rubio all along has been saying, We have to have border security first and then he gets on Spanish TV, he ends up saying, No, no. That will never get in the way.

immigration