Pentland's columns teemed with personal abuse, which grew especially bitter following McKean's victory over
Simon Snyder in the
1805 gubernatorial election. Bates struck back at his detractor on the street, with two or three lashes of a cowhide whip. Pentland some time later issued a challenge to a duel, which Bates declined. In publishing his account of the affair in the
Tree of Liberty, Bates gave offense to Thomas Stewart, a merchant who had carried Pentland's challenge to Bates. Stewart, after failing to receive an apology, challenged Bates, who fatefully accepted. In the duel Bates was killed on the second exchange of fire. ==Pentland departure, successors==