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.

Its been 4 and a half years since the United States Senate passed a budget.
congress

Says Hillary Clinton once wanted a wall on the Mexican border.
immigration

Barack Obama wrote a thesis at Columbia University in which he criticized "plutocratic thugs" and said the Constitution gave Americans "the shackles of hypocrisy."

candidates-biography