More than three-quarters of the Senate Republican caucus signed onto legislation introduced Wednesday by Sens. Tom Coburn (R-OK) and Rand Paul (R-KY) that could render it virtually impossible for Congress to enact any legislation intended to improve working conditions or otherwise regulate the workplace. Had their bill been in effect during the Twentieth Century, for example, there would likely be no nationwide minimum wage, no national ban on workplace discrimination, no national labor law and no overtime in most industries.

Like many Tea Party proposals to neuter the federal government, Coburn and Paul’s bill is marketed as an effort to bring America back in line with a long-ago discarded vision of the Constitution. It’s named the “Enumerated Powers Act of 2013,” a reference to the provisions of the Constitution outlining Congress’ specific powers, and it claims to require all federal legislation to “‘contain a concise explanation of the specific authority in the Constitution’ that is the basis for its enactment.”

The key provision in this bill, however, would revive a discredited interpretation of the Constitution that America abandoned nearly eight decades ago. Although the text of the bill is not yet available online, a press release from Coburn’s office explains that it “[p]rohibits the use of the Commerce Clause, except for ‘the regulation of the buying and selling of goods or services, or the transporting for those purposes, across boundaries with foreign nations, across State lines, or with Indian tribes.’”

More: 36 Senators Introduce Bill Prohibiting Virtually Any New Law Helping Workers