Ezra Klein is joined by Evan Osnos, a staff writer at the New Yorker and the author of Joe Biden: The Life, the Run, and What Matters Now to discuss our new president. President Biden has been in national politics for almost five decades. And so, people tend to understand the era of Joe Biden they encountered first — the centrist Senate dealmaker, or the overconfident foreign policy hand, or the meme-able vice president, or the grieving, grave father. But Biden, more so than most politicians, changes. And it’s how he changes, and why, that’s key to understanding his campaign, and his likely presidency.  Learn more about your ad choices. Visit megaphone.fm/adchoices