to eliminate the first constitution's anti-slavery clause and transform Illinois into a slave state like Missouri. Coles’ bold call for an end to slavery stiffened their resolve and led to a rancorous legislative effort which began with the Shaw-Hansen Affair (concerning whether to seat a pro-slavery candidate backed by voters who came from Missouri, or his anti-slavery opponent). Governor Edward Coles led the opposition to a bill approving a referendum to hold another constitutional convention, recognizing it as a dishonest attempt to more clearly legalize slavery in the state. After the bill passed, Coles committed his total pay as governor ($4000) to defeat the referendum, and led a committee of anti-slavery citizens, religious leaders, and legislators (who committed another $1000). The aristocratic, awkward Virginian and his allies then dispelled a plethora of false economic arguments spread by slavery proponents, while in the aftermath of the Panic of 1819 keeping secret their printing help from much-reviled Philadelphians (Nicholas Biddle and Roberts Vaux). The 18-month political struggle used committees in each county as well as traveling preachers. On August 2, 1824, Illinois voters rejected the pro-slavery convention referendum (as well as re-elected anti-slavery U.S. representative Daniel Pope Cook). However, by year's end pro-slavery legislators refused to approve Coles' appointment of his anti-slavery friend Morris Birkbeck as secretary of state. Furthermore, lieutenant governor Adolphus Hubbard attempted to wrest the governorship away from Coles during his trip to Virginia in late 1825, causing additional confusion, although Hubbard also lost the gubernatorial election the next year to Ninian Edwards (the state Constitution also included a provision modelled on Virginia's which precluded governors from running for reelection). Finally, a lawsuit that political opponents in Madison County, Illinois brought against Coles for failing to pay a slave tax on his freed slaves years earlier took several more years, including shenanigans by pro-slavery judge Samuel McRoberts, before the Illinois Supreme Court ruled such payment unnecessary. Coles' valedictory speech as governor in December 1826 reminded legislators of his previous speeches urging them to abolish slavery and its remnants (especially heritability) in the new state, as well as to finance a canal to the Great Lakes watershed and a penitentiary. After his term as governor expired, Coles returned briefly to Virginia, where his mother had died that spring. Coles then returned to his farm outside of Edwardsville. He focused on agricultural and business pursuits, between continued trips to Virginia and