Final answer:
The 1868 election supports the conclusion that the US was deeply divided post-Civil War. Ulysses S. Grant's landslide victory as the Republican nominee was largely due to strategies like 'waving the bloody shirt' to blame the war's devastation on rival parties.
Step-by-step explanation:
The election of 1868 best supports the conclusion that the country was still deeply divided following the Civil War, with parties utilizing strategies such as 'waving the bloody shirt' to blame the devastation of the war on rival parties. The Republican nominee Ulysses S. Grant, a prominent Union war hero, won the presidency in a landslide victory against Democrat Horatio Seymour. The results reflect the power and effect of civil war sentiments at the time.
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