Nancy LeTourneau writing at _Washington Monthly about AOC’s a Twitter smackdown of Scott Walker:

But a tweet like that doesn’t change anything. Scott Walker’s followers still love his take on tax cuts (perhaps even more than they did before) and he will continue to spread that kind of nonsense in future political endeavors. In other words, it feels like Ocasio-Cortez “owned” Scott Walker, but I can guarantee you that his followers will be tweeting that he “owned the libs” (as they like to say) with his original analogy. Each side feels like they won something, but other than those good vibes, they don’t walk away with anything else.

Don’t get me wrong, there is nothing wrong with spreading those kind of good vibes. It helps keep morale up during a very difficult time, which is no small thing. But here’s my point: it is not a political strategy. You don’t “win” anything by scoring a verbal victory on social media. I’m going to give Ocasio-Cortez the benefit of the doubt and assume she knows that. If not, she’s in for a very rude awakening.

I agree with LeTourneau—this sort of thing doesn’t change any voters' minds.

However, I think it is more about working the refs—the media and punditocracy—which is something Democrats have historically been pretty terrible at.

As long as Republican tools like Walker are spouting off nonsense like he did without being challenged, the more it cements the bullshit public narrative that they are somehow more serious about taxes. Every time a Democrat punches back like this, it shifts that narrative slightly.