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: The US inquiry into alleged Russian meddling during the 2016 election could be under threat after President Donald Trump fired Attorney General Jeff Sessions, top opposition Democrats say.

Trump-Russia probe 'under threat' after Sessions fired