Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: New Jersey Governor Chris Christie laughed about his staff closing part of a bridge in 2013 over a mayor who refused to endorse him, a court heard.

New Jersey Governor Chris Christie 'laughed about Bridgegate'