The entire idea of a Trump comeback is predicated on the assumption that over the next 20 weeks, there can be so much good news that voters will flock to support Trump in even greater numbers than they were back in the pre-pandemic days of early January.

But even during those relatively good times, Biden held a strong lead. (On January 1, Biden was . . . +6.)

Looking out at the horizon, it’s hard to see where good news for Trump is going to come from.

From unemployment numbers that are only in the mid-teens? If that’s your message to voters—Trump 2020: It could be worse! . . . Well, good luck. A figure people don’t like and whose job performance they don’t approve of selling bad results as a “comeback” against a better-liked opponent who’s been leading for a year seems unlikely to work.

And don’t forget that with each passing week that Trump doesn’t make up ground, the momentum pushing against him increases.