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.

Says the Constitution specifically states the Congress shall write legislation for immigration policy, so Barack Obama lacks the authority to defer the deportation of young illegal immigrants.
immigration

Obama opposed exploring for energy in Alaska.
environment

I havent raised taxes in the time Ive been the governor of New Jersey.

taxes