Why David Chalian says Biden took a ’different tone’ during critical news conference

President Joe Biden vowed to continue his reelection campaign during a high-stakes solo news conference. CNN Political Director David Chalian discusses. #CNN #news Want to stay up to date on the day’s top stories? Sign up for CNN’s 5 Things newsletter, and we’ll give you the 5 biggest stories you need to know, videos people are watching, and more! Sign up here: