The Sixteenth Amendment in 1913 extended congressional power of taxation to include income taxes without apportionment among the several States, and without regard to any census or enumeration. The Constitution also grants Congress the exclusive power to appropriate funds, and this "power of the purse" is one of Congress's primary checks on the executive branch. Congress can borrow money on the credit of the United States, regulate commerce with foreign nations and among the states, and coin money. Generally, both the Senate and the House of Representatives have equal legislative authority, although only the House may originate revenue and appropriation bills.