Can you provide evidence for that position? The law itself clearly mentions interstate transactions and includes directions to "any court of the United States".

Can you provide evidence for that position? The law itself clearly mentions interstate transactions and includes directions to "any court of the United States". I also can't find a Supreme Court case matching your description. "CHAP. 218.-An Act To make valid and enforceable written provisions or agreements for arbitration of disputes arising out of contracts, maritime transactions, or commerce among the States or Territories or with foreign nations."