What was problematic about the 1876 presidential election?

The Republican Party was divided between Grant’s followers and the Liberal Republicans.

Explanation:

The United States presidential election of 1876 was one of the common disputed presidential elections in American Chronicle. Samuel J. Tilden of New York outpolled Ohio's Rutherford B. Hayes in the democratic vote, and had 184 electoral votes to Hayes' 165, with 20 votes uncounted. The Agreement of 1877, which granted all 20 electoral votes to Hayes. In return for the Democrats' permission to Hayes's election, the Republicans accepted to withdraw federal delegations from the South, closing Reconstruction.

i am not 100% positive but i think it is is b. both are non-partisan jobs

i am pretty sure that members of congress have term limits, can be impeached, and are nominated through direct popular vote.