As it happens, the US is a large net exporter of diesel.
Some of that doubtless comes from US refineries processing imported crude, from Canada Mexico and Venezuela. But between one thing and another the US is not short of petroleum or petroleum products, and isn’t going to be.
We will run out before Russia and that really is the only thing that matters.
Even if we see real shortages, that guarantees a pro-petro President & Congress being elected in 2024.
Problem solved in short order.