Some seventeen years have now passed since the close of that war. As a matter of history it is well known that over ninety-five per cent, of those who had taken an active part in the Confederate cause went into the Democratic party, and since that time have steadily cooperated with that party. A few, a very few, could not, as they said, forgive the treachery and the wrongs of the Democratic party towards the South, and these went into the Republican party--some honestly, no doubt; others, only because they thought it would "pay best."
Another answer to your query would be, that in not denouncing, but by going into, the Democratic party a very large proportion of Southern men were only returning to their first love. In the days of Whiggery several of the Southern States gave Whig majorities; but when that party died, because of its coquetting with slavery, and the Republican party took its place, the leading principle of which new party was opposition to slavery, first, as to its extension, and then as to its continuance, nearly the whole vote of the South became Democratic. This was very plainly shown in the vote cast for Franklin Pierce and Winfield Scott (the last Whig candidate), in 1852, when the former received two hundred and fifty-four electoral votes and the latter only forty-two. Indeed, it was this fact, and the great preponderance of Democratic votes at that election, that gave to the Secessionists of the South, and their sympathizers, aiders, and abettors of the North, the encouragement which caused them to inaugurate a rebellion in 1860. It was this, together with the fact that out of the thirty-two preceding years--from the election of Jackson in 1828 to that of Lincoln in 1860--the Democrats had held the power twenty-four years and the Whigs only eight. They had grown to look upon the Democratic power as invincible, and their European coadjutors had been made to believe that the time had finally come when the hated representative form of the United States government could be changed into a slaveocracy, then into an aristocracy, and then into a kingly form of government; while a censorship could be placed upon the press so effectual, that from thenceforth it could never do European sovereignties or the Roman Catholic Church any harm. Those who only saw the outside of the late rebellion supposed that it had its incipiency in 1860, whereas those who knew of its inside workings (as we all know now), knew that preparations had been going on for eight years previous, and that both Franklin Pierce and James Buchanan, from 1852 to 1860, had only been used as tools or instruments by which to forward these preparations. The result of the Presidential vote in 1856 only made those in the secret of the secession movement (both in this country and in Europe) the more determined to strike the blow in 1860; for they saw by that vote that, while their candidate, Buchanan, was elected by a majority of fifty-two electoral votes (Buchanan one hundred and seventy-four, Fremont et al. one hundred and twenty-two), yet the popular vote stood Buchanan 1,838,169, Fremont et al. 2,215,498, being really against their candidate, on the popular vote, to the extent of 377,329 votes. This strange result was owing to the fact that, while all the Southern States voted for their candidate, and several Northern States as well, they were all by small majorities; whereas such of the Northern States as voted for Fremont and others did so by large majorities. Had they delayed the strike another four years, it would have been forever too late.