Last night in Ohio, The New York Times co-hosted a presidential debate for the first time in more than a decade. Marc Lacey, The Times’s National editor, moderated the event with the CNN anchors Erin Burnett and Anderson Cooper. It was also the first debate since Democrats started an impeachment inquiry into President Trump and his efforts to pressure Ukraine to investigate former Vice President Joseph R. Biden Jr. Candidates denounced the president, calling for his impeachment, without wading into the specifics of the investigation. Instead, moderates focused on winning over Biden voters by differentiating themselves from more progressive candidates. Guests: Alexander Burns, who covers national politics for The Times, and Maggie Haberman, who covers the White House. For more information on today’s episode, visit nytimes.com/thedaily.  Background coverage: Senator Elizabeth Warren was the primary target of moderates’ attacks, illustrating her status as an emergent front-runner. Candidates avoided criticism of Joe Biden, wary of echoing President Trump’s attacks on his family.Here are six takeaways from the debate.