“For them to go back four years later, with the benefit of eight years of White House-based political experience — it’s an advantage I don’t think any administration has ever had,” said Dan Pfeiffer, who was a senior adviser to Obama. “During much of the second term in particular, I would think, ‘Man, if I only knew then what I know now.’ ”…

Contrasting the 44th and 46th presidents has revealed tensions between Biden’s team and some from the Obama years who have not joined the administration. Many of those alumni bristle at the idea that fundamental mistakes were made, arguing that the political climate surrounding the nation’s first African American president a decade ago was dramatically different.

“The parallels between the Recovery Act and the American Rescue Plan has been treated like the Obama experience is frozen in amber from 2009 to 2010,” said Pfeiffer, referring to the smaller stimulus passed during the Great Recession.

He said that during “the full breadth of the eight years” of the Obama administration, “politics changed and the Republican Party changed.”