Clay led on the first ballot, but circumstances conspired to deny him the nomination. First, the convention came on the heels of a string of Whig electoral losses, and party members were anxious to reverse the trend. Harrison managed to distance himself from the losses, but Clay, as the party's philosophical leader, could not. Had the convention been held in the spring of 1840, when the continuing economic downturn caused by the Panic of 1837 led to a string of Whig victories, Clay would have had much greater support. Second, the convention rules had been drawn up so that whoever won the majority of delegates from a given state would win all the votes from that state. This worked against Clay, who could have combined solid majority support in almost all the Southern delegations, and a large minority support in Northern delegations if the rules allowed counting of individual delegate votes. Third, several Southern states whose Whig party organizations supported Clay abstained from sending delegates to the convention. Harrison won on the fifth ballot after Clay delegates from Illinois and Scott delegates from Michigan, New York, and Vermont combined to switch their support to Harrison. The state-by-state roll call was printed in the newspaper the Farmer's Cabinet on December 13, 1839:
Because Harrison was considered a Northerner, the Whigs needed to balance the ticket with a Southerner. They also sought a Clay supporter to help unite the party. After being turned down by several potential candidates, including John J. Crittenden, John Bell, and Willie Person Mangum, the convention finally found its Southerner who had faithfully supported Clay and would accept: former Senator John Tyler. Tyler was well known to the delegates, having previously been the running mate of Hugh Lawson White and Willie Person Mangum during the four-way Whig campaign of 1836. Tyler was easily nominated on the first ballot.
Aftermath
During the balloting, Clay and Scott played cards with Whig politicians John J. Crittenden and George Evans at the Astor House hotel in New York City. When the group received word of Harrison's victory, Clay blamed his loss on Scott and struck him, with the blow landing on the shoulder which had been wounded during Scott's participation in the Battle of Lundy's Lane. Afterwards Clay had to be physically removed from the hotel room. Scott then sent Crittenden to Clay with Scott's challenge for a duel, but Crittenden reconciled them by convincing Clay to apologize.