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: In the history of the United States, 168 presidential nominees have been filibustered, 82 blocked under President Obama, 86 blocked under all the other presidents.

congressional-rules