What exactly made Biden change his mind? [View all]

[KayF]

Obviously he knew there would be some backlash. I figure there must have been some particular aspect of it that he didn't expect.

It's obviously not his primary opponents. He knew they would attack him and he must have been preparing his case. I saw some of the arguments here at DU.

My guess is that it was the activist groups like NARAL. I'm wondering if he expected one or more of them to give him cover, because they support him overall, or are desperate to defeat Trump and they think he's the best chance.

Or it could be something behind the scenes, like a major donor calling him about it...