The fourth Democratic debate at Otterbein University in Westerville, Ohio, just outside of Columbus, featured twelve candidates all sharing the same stage. Most observers paid close attention to how Senator Elizabeth Warren performance now that she is leading in many national polls and she had a fairly strong night. Eyes were also on Bernie Sanders, who is returning to the race after suffering a heart attack on October 1. He had a strong performance and is, at least for now, seeming to move on from his health emergency. Joe Biden had a relatively strong night without any major gaffes, but without any major memorable moment either.