What did the close election of 1876 make necessary?

1876 Presidential Election

The 20 disputed electoral votes were ultimately awarded to Hayes after a bitter legal and political battle, giving him the victory. ... In return for the Democrats' acquiescence in Hayes' election, the Republicans agreed to withdraw federal troops from the South, ending Reconstruction.

Explanation:

please mark as brainliest if I helped

An agreement in Congress so that President Hayes could take office

Explanation:

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the passage of a strict fugitive slave law