Democratic debate: key takeaways from the most bruising evening yet

Biden, Buttigieg and Klobuchar battled over the center lane amid questions over race and party unityThe Democratic debate in New Hampshire topped off a turbulent week for Democrats, marked by chaos at the Iowa caucuses and continuing fallout from Donald Trump’s Senate acquittal.For more than two and a half hours, seven candidates confronted each other and took full advantage of their final televised opportunity to pitch themselves as the top choice ahead of the New Hampshire primary on Tue