Top Obama pollster warns left not to get greedy ahead of midterms

Why it matters: Benenson has years of data showing that the more lawmakers add to a massive piece of legislation, the less likely that swing voters will swallow it. And, as Benenson put it: “You gotta win the middle to win.”

Lemme tell you a secret: You know someone who agrees with Joel Benenson? President Biden.

I’m told Biden firmly believes that politically, the country lives in the middle. He’ll resist pressure from the party’s muscular left to add elements to his proposals that could sink them.