Definition: In this task, you are given a news article. Your task is to classify the article to one out of the four topics 'World', 'Sports', 'Business', 'Sci/Tech' if the article's main topic is relevant to the world, sports, business, and science/technology, correspondingly. If you are not sure about the topic, choose the closest option. Note that URLs in the text have been replaced with [Link].
Input: Responding to McCain, Bush Plans Legal Action on Ads (Reuters) Reuters - President Bush on Thursday\sought to smooth over differences with Sen. John McCain by\promising to take legal action to stop political ads by outside\groups, including those attacking the war record of Bush's\Democratic presidential rival, John Kerry.

World