"(the power to regulate commerce is) the power to regulate; that is, to prescribe the rule by which commerce is to be governed. this power, like all others vested in congress, is complete in itself, may be exercised to its utmost extent, and acknowledges no limitations, other than are prescribed in the constitution.\" —supreme court

the supreme court defined the meaning of the power to "regulate commerce" in the case of

a. district of columbia v. heller
b. mcculloch v. maryland
c. united states v. nixon
d. gibbons v. ogden