On August 3, 1805, Muhlenberg wrote a letter to the residents of the primarily-German Northampton and Berks counties in a successful attempt to tilt those counties toward incumbent Governor Thomas McKean, who, in the midst of a badly fractured state Republican Party, was running with Federalist support, in his bid for reelection. Muhlenberg noted that although McKean's opponent, Simon Snyder, was of German descent, his election would elevate the Republican Party's radical Democratic faction to power and, with calls for a Constitutional Convention to elevate the power of the state legislature over the governor and especially the judiciary, result in anarchy. McKean's margin of victory, 6,772-3,216, over Snyder in Northampton and Berks secured his narrow, 43,644-38,483, statewide margin of victory over Snyder.