The system of checks and balances failed on the andrew jackson when he

The system of checks and balances failed on the Andrew Jackson WHEN HE WENT AGAINST A SUPREME COURT DECISION.
As the president of the United States then, Andrew Jackson refuse to obey the ruling of the supreme court which mandated it that he should not flush the Cherokees out of their lands. 

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True,  spain conquered the incas and the aztecs for their gold and silver.