Russia is having problems supplying itself with diesel due to how many of their refining capacity has been damaged by Ukraine.
The only effect of this will be an attempt to shift blame from Trump for the shortages and high costs of energy onto Ukraine for daring to defend themselves.
I would really hope this is the final straw for Americans to vote out every single Russia apologist out of office in the midterms, but if that had really been a dealbreaker for voters, Trump’s team probably wouldn’t have announced this in the first place. They know Americans care about gas prices more than foreign policy.