Answer:
Ulysses S. Grant
Step-by-step explanation:
Thanks to the 15th amendment to the US Constitution, African American men had the ability to vote in presidential elections. Many African American men voted for Ulysses S Grant when he ran for president. This is due to the fact that Grant was the leader of the Union army during the Civil War. Grant's success as a military commander helped to officially end slavery and the Civil War. This is why many African American citizens liked Grant, as he fought to end the institution of slavery within the US.