In recognition of the growing power and importance of the great West, the Republican National Convention was called to meet in Chicago on the 16th of May. The former Presidential canvass, though resulting in the defeat of Frémont, had nevertheless shown the remarkable popular strength of the Republican party in the country at large; since then, its double victory in Congress against Lecompton, and at the Congressional elections over the Representatives who supported Lecompton, gave it confidence and aggressive activity. But now it received a new inspiration and impetus from the Charleston disruption. Former possibility was suddenly changed to strong probability of success in the coming Presidential election. Delegates were not only quickened with a new zeal for their principles; the growing chances spurred them to fresh efforts in behalf of their favorite candidates. Those who had been prominently named were diverse in antecedents and varied in locality, each however presenting some strong point of popular interest. Seward, of New York, a Whig of preeminent fame; Chase, of Ohio, a talented and zealous anti-slavery Democrat, an original founder of the new party; Dayton, of New Jersey, an old Whig high in personal worth and political service; Cameron, of Pennsylvania, a former Democrat, now the undisputed leader of an influential tariff State; Bates, of Missouri, an able and popular anti-slavery Whig from a slave-State; and last, but by no means least in popular estimation, Lincoln, of Illinois. [Sidenote] Pickett to Lincoln, April 13, 1859. MS. The idea of making Lincoln a Presidential candidate had occurred to the minds of many during his growing fame. The principle of natural selection plays no unimportant part in the politics of the United States. There are always hundreds of newspapers ready to "nail to the mast-head" the name of any individual which begins to appear frequently in dispatches and editorials. A few months after the close of the Lincoln-Douglas debates, and long before the Ohio speeches and the Cooper Institute address, a warm personal friend, the editor of an Illinois newspaper, wrote him an invitation to lecture, and added in his letter: "I would like to have a talk with you on political matters, as to the policy of announcing your name for the Presidency, while you are in our city. My partner and myself are about addressing the Republican editors of the State on the subject of a simultaneous announcement of your name for the Presidency." [Sidenote] Lincoln to Pickett, April 16, 1859. MS. To this Lincoln replied: "As to the other matter you kindly mention, I must in candor say I do not think myself fit for the Presidency. I certainly am flattered and gratified that some partial friends think of me in that connection; but I really think it best for our cause that no concerted effort, such as you suggest, should be made." [Illustration: GENERAL JOHN C. BRECKINRIDGE.] [Sidenote] Lincoln to Judd, Dec. 9, 1859. MS.