broke the relationship between Washington and Madison, who had served as the president's foremost congressional ally during the first year of his presidency. Opponents of Hamilton and the administration won several seats in the 1792 Congressional elections, and Hamilton was unable to win Congressional approval of his ambitious economic proposals afterward. Whiskey Rebellion Despite the additional import duties imposed by the Tariff of 1790, a substantial federal deficit remainedchiefly due to the federal assumption of state revolution-related debts under the Funding Act. By December 1790, Hamilton believed import duties, which were the government's primary source of revenue, had been raised as high as was feasible. He therefore promoted passage of an excise tax on domestically distilled spirits. This was to be the first tax levied by the national government on a domestic product. Both Hamilton and Madison believed that an excise tax on spirits was the least objectionable tax that the government could levy at that time; a direct tax on land would be even more unpopular. The tax had the support of some social reformers, who hoped that the tax would discourage alcohol consumption. The Distilled Spirits Duties Act, commonly known as the "Whiskey Act", became law on March 3, 1791, and went into effect on June 1., p. 64. The tax on whiskey was bitterly and fiercely opposed on the frontier from the day it was passed. Western farmers considered it to be both unfair and discriminatory. As the Lower Mississippi River had been closed to American shipping for nearly a decade, farmers in western Pennsylvania were forced to turn their grain into whiskey. The substantial reduction in volume resulting from the distillation of grain into whiskey greatly reduced the cost to transport their crops to the populous east coast, which was the only place where there were markets for their crops. In mid-1794, the government began to crack down on tax evasion, launching prosecutions against dozens of distilleries. On July 15, 1794, tax collector John Neville and his slaves fired at a militia that had surrounded his house, killing a member of the militia. The next day, a group of militia members seeking Neville fired on a group of federal soldiers, causing casualties on both sides. Following this confrontation, the militia captured a federal marshal and continued to clash with federal forces. As word of this rebellion spread across the frontier, a whole series of loosely organized