I would say instead:

The Right understands that positive perception of the economy rebounds to the benefit of the incumbent President and they want Biden to lose to the Republican nominee for partisan reasons.

The far Left understands that positive perception of the economy rebounds to the benefit of the incumbent President and they want Biden to lose to Trump, who they expect to be the Republican nominee, for accelerationist reasons.

The news media likes negative spins because public insecurity drives news media consumption.