Sanderson was one of the Pennsylvania delegates to the 1860 Republican National Convention at Chicago . He was one of Simon Cameron 's confidential advisers . Sanderson , in conference with Judge David Davis , who most prominently represented the Lincoln interest , came to a practical agreement on the night before the balloting that Pennsylvania 's vote after a complimentary ballot for Cameron be cast for Lincoln , and that Lincoln should give Cameron a cabinet position . The casting of Pennsylvania 's vote for Abraham Lincoln on the second ballot was one of the facts that contributed most toward Lincoln 's nomination for the 1860 United States presidential election
1860 Republican National Convention
1860 Republican National Convention
John P. Sanderson