In the 1920 case Smith v. Kansas City Title & Trust Company, the Supreme Court of the United States ruled on whether or not federal bonds issued to finance farm loans were constitutional. The Kansas City Title & Trust Company argued that these bonds violated the Constitution because they did not serve a public purpose and thus exceeded Congress's powers under Article I, Section 8 of the Constitution. However, in a unanimous decision written by Justice Mahlon Pitney, it was determined that such activities fell within congressional authority as long as they served a legitimate national interest. In this instance, stabilizing agriculture was deemed to be in line with promoting general welfare and therefore within Congress’s power to regulate commerce among states and provide for common defense and general welfare of United States.

In the dissenting opinion for Smith v. Kansas City Title & Trust Company, Justice McReynolds argued that the Federal Farm Loan Act of 1916 was unconstitutional because it allowed federal land banks to issue tax-exempt bonds, which he believed violated states' rights. He contended that this provision exceeded Congress's constitutional powers and infringed upon state sovereignty by interfering with their taxing power. Furthermore, he expressed concern about the potential implications of such a decision on future cases involving similar issues related to taxation and federalism. His argument emphasized strict interpretation of the Constitution and a strong belief in preserving states’ rights against what he perceived as overreach by the federal government.