Sen. Elizabeth Warren (D-Mass.) was not pulling her punches in Wednesday night's Democratic presidential debate in Las Vegas, and her most potent haymakers landed on former New York City Mayor Michael Bloomberg, standing to her right. MSNBC's post-debate panel showed the moment she started pummeling Bloomberg, and Chris Matthews described it in elaborate boxing metaphors.The Daily Show was a little more succinct:> Elizabeth Warren rn pic.twitter.com/HbrrAFVNRx> > -- The Daily Show (@TheDailyShow) February 20, 2020Warren's biggest blow was set up by Bloomberg himself, and Joe Biden jumped in to help her finish him off.After the debate, Matthews asked Warren why she went after Bloomberg so hard. "I think it's important for people to know exactly what Michael Bloomberg has said and done," she said. "It is important to know who this guy is," and "he is a threat because he's already dropped $400 million in this campaign, and understand t