DOUGLAS FOR THE PRESIDENCY. – Before the actual results of the Illinois election are definitely known, our republican and Douglas newspaper contemporaries are trotting out “the Little Giant,” as the inevitable democratic nominee of the Charleston Convention in 1860. But alas! there lies between this day and that convention an interval of nearly two years, comprehending the last session of the present Congress and the first session of the next, which may bring about such changes upon the political chess board as to leave Douglas, Wise, Seward, Banks, Chase, and all the outstanding candidates among the unavailables of a new order of parties and party issues. It is said that Mr. Douglas lost the Baltimore nomination of 1852 because he had been “a little too fast.” His fast friends, who are now so confidently thrusting him forward, will probably realize the same treatment in 1860, from the same cause.