It sounds like you just want to know at what arbitrary amount of time trump gets the blame for Biden’s failings, even though they are Biden’s failings.

There are some things that will always be the Biden admin’s fault, like the rampant inflation and price increases that lead to the current cost of living crisis. That inflation and those increases of prices across the board haven’t gone away, and likely never will. The only way they do is by absolutely massive deflation, or a depression in other words.

Something that cost $5 in 2021 should only cost $5.50 or so now if inflation didn’t go crazy, but instead it costs $8 because of the Biden admin. Trump can’t “fix” that. The only ways are a depression, which would be seen as a failure even though it’s what’s needed, or for real wages for every person in the country to skyrocket 30% more than inflation, without causing extreme inflation, which isn’t possible.

The tariffs are a risk, for sure - but the goal of them is to make things cheaper after a bit of short term pain as countries reduce their tariffs on US products to below where they were before to make the USA reduce their tariffs back to what they were, because the countries can’t survive without US exports. It’s a negotiating tactic, and it’s already worked with a lot of countries. The big one still in the air is China, but it’s showing good signs.