The most relevant difficulty that Andrew Jackson would have faced in implementing his preferred currency of gold and silver coin is:
**The U.S. stock of gold and silver was too limited under Jackson's presidency to provide a sufficient money supply.**
Jackson's backing of a currency based solely on gold and silver meant that there needed to be enough precious metal available to support the currency in circulation. During his presidency, the overall stock of gold and silver was indeed limited compared to the growing needs of the economy for a flexible money supply.