“Dean Phillips has some regrets. Not about his decision to launch a quixotic primary challenge to President Joe Biden. He stands by that move, which alienated him from his party even as it proved prescient after Biden’s disastrous debate with Donald Trump,” Politico reports. “But in an exit interview… the retiring Minnesota Democrat said he wished he had been more successful at fixing what he says is a deeply broken Congress and that he could have delivered more for his constituents.