Eh?
No, the American idea of the supply side economics has not any particular track record outside of the USA (and it by the emperical evidence did not have a great record in the USA in comparison with its claims). Of course it is only a focusing on a specific aspect of the modern consensus economic theory of the neo-classical synthesis.
It can be said the neo-classical synthesis economics has a very good track record, but that is not the same as this strange american distortion.