question: What happened between 1938 to 1995 ?
answer: the U.S. Supreme Court did not invalidate any federal statute as exceeding Congress ' power under the Commerce Clause .
turker_answer: Between 1938 to 1995 , the U.S. Supreme Court did not invalidate any federal statute as exceeding Congress ' power under the Commerce Clause .
rule-based: Between 1938 to 1995 the U.S. Supreme Court did not invalidate any federal statute as exceeding Congress ' power under the Commerce Clause .