The congressional reapportionment based on the 1870 United States census increased the number of House seats to 292.

The proindustry outlook of the Republicans appealed to many Northern voters, especially as the post-war economy exploded, and this allowed the party to flourish as the Industrial Revolution grew more widespread.

The Republicans also benefited from a continuing association with victory in the American Civil War, as well as disarray amongst Democratic leadership.

[3] In 1845, Congress passed a law providing for a uniform nationwide date for choosing Presidential electors.

[16] Pinchback challenged the election and it was settled in February 1875, in Sheridan's favor, only one month before the end of the Congress.