Welcome to the CNN live blog, where we’ll be bringing you all the best moments from the debate – on the stage, on social media and behind the scenes.

Your host for the evening is CNN political reporter Tal Kopan, who will also be bringing you insights from the whole CNN political team, both in Simi Valley, California, and in Washington, D.C.

As you’re watching, use our hashtag, #CNNDebate, to engage with all the action.