This seems pretty thin. For example he tells us that Biden is working much harder than Trump, but apparently he hasn't held a full cabinet meeting in almost a year and has effective hours between 10AM and 4PM.
Progressives aren't mesmerizing voters that the economy has not worked out well for them; voters look at high prices and interest rates and draw their own conclusions. It's very paternalistic and rather conspiracy minded to say that voters would be ecstatic about Biden if it wasn't for those pesky progressives reminding them that their paychecks aren't going as far while their loan payments are surging.
Sure, but what proportion of that 60% is investing outside of untouchable 401Ks? And how large are those 401Ks? Having your 401K index do pretty good doesn't help you if your groceries and rent have shot up 40 years before you're retiring. It's a meaningless statistic.
Frum is just ecstatic to hurt Dems by convincing the centrists that they've been stabbed in the back by the progressives.
@CPX could be on to something when he said that progressives were backing Biden to prevent being scapegoated.