evidence: Here is how one expert sees it: "There is a reason Bernie Sanders has called the Biden agenda the most progressive ever. Because it is." [...] "The world is different; there’s too much unfinished business for us to just look backwards. We have to look to the future. Bernie understands that, and Joe understands that," former President Barack Obama said in a video when he endorsed Biden as president. "It is one of the reasons that Joe already has what is the most progressive platform of any major-party nominee in history. Because even before the pandemic turned the world upside down, it was already clear that we needed real structural change." [...] "There is a reason Bernie Sanders has called the Biden agenda the most progressive ever. Because it is. And I think it is largely because of those promises that Biden loses next week," Feehery added.