Because the Northern States had already abolished slavery, and it was only the Southern States who were left to do so.
<span>The Sedition Act of 1918, enacted during World War I, made it a crime to "willfully utter, print, write, or publish any disloyal, profane, scurrilous, or abusive language about the form of the Government of the United States" or to "willfully urge, incite, or advocate any curtailment of the production" of the things " ...
Source:google </span>
War want very popular with the public and with most politicians <span />