> I think the bigger problem isn't that the Dems didn't try to take credit for growth, but that they didn't point out that actually things weren't that rosy in 2020 and basically conceded the entirely false argument that Trump's term made the economy better and Biden's made it worse.

This is more or less the direction I was heading w/ my post. I don't think it's a messaging issue per se. Rather it's control of the messaging. The economy in general has been on a steady path for a while, despite ups & downs: it's trending towards a bimodal distribution where certain parties are doing quite well and others are doing less well. But what I've seen the last several election cycles is the indicators that dominate what I see on TV, read online, etc swap depending on who is in power. So my expectation is that literally nothing will change yet we'll be hearing about how awesome the economy is for everyone in several months.