question: What enabled federal law to begin expanding into other areas such as avaition , telecommunications , railroads , etc. . ?
answer: Commerce and Spending Clauses of the Constitution
turker_answer: The Commerce and Spending Clauses of the Constitution enabled federal law to begin expanding into other areas such as aviation , telecommunications , railroads , etc. . .
rule-based: Commerce and Spending Clauses of the Constitution enabled federal law to begin expanding into other areas such as avaition , telecommunications , railroads , etc. . .