During the 1920s, three Republicans occupied the White House: Warren G<span>. </span>Harding,Calvin Coolidge<span>, and Herbert Hoover. </span>Harding<span> was inept, </span>Coolidge<span> was mediocre, and Hoover was overcome by circumstances he neither understood nor could control.
-Melia</span>
McClellan discovered General Robert E. Lee's battle plan.
Obviously, infiltration and access to battle plans allow for the opponent to figure out what their opponent's plans are, thus giving McClellan the victory at Antietam.
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After 1812 and before the Civil War, Southern planters opposed high tariffs on imported goods.
B. It was a defensive tactic