The Joe Biden who became the 46th president on Wednesday isn't the same blabbermouth who failed in 1988 and 2008.
Why it matters: Biden now heeds guidance about staying on task with speeches and no longer worries a gaffe or two will cost him an election. His staff also limits the places where he speaks freely and off the cuff. This Biden protective bubble will only tighten in the months ahead, aides tell Axios.
