New York Times reporter Maggie Astor noted Sen. Elizabeth Warren’s fierce takedown of late entry Mike Bloomberg Thursday morning after the fiery Las Vegas debate, and betrayed both pro-Warren cheerleading and grievous gaps in her knowledge of popular political analysts: “Elizabeth Warren, Criticizing Bloomberg, Sent a Message: She Won’t Be Ignored.” Astor: "Even before the debate had ended, some commentators -- including the conservative Washington Post columnist Jennifer Rubin...were criticizing Ms. Warren as 'mean,' 'angry' and 'nasty.'...