Which U.S. president was involved in the contested election known as the Hayes-Tilden election?

The Hayes-Tilden election refers to the highly contested presidential election of 1876 between Rutherford B. Hayes and Samuel J. Tilden. Tilden, the Democratic candidate, won the popular vote, but disputed results in several states led to a crisis over the final electoral outcome. The election was marked by significant controversy and allegations of voter fraud. Ultimately, Rutherford B. Hayes, the Republican candidate, was awarded the presidency after a compromise, which involved the withdrawal of federal troops from the South, effectively ending the Reconstruction era. This context surrounding the election underscores Hayes' critical role in this pivotal moment in U.S. history, highlighting why he is correctly identified as the president involved in this contested election.