Step 1 : Introduction to the question "Who served as Abraham Lincoln’s Vice President during his first term in office?"
...Hannibal Hamlin served as Vice President under Abraham Lincoln during his first term from 1861 to 1865, a period dominated by the outbreak and early years of the American Civil War. A former senator from Maine, Hamlin was a strong anti-slavery Republican who aligned with Lincoln’s policies. Incredibly, he and Lincoln didn't meet in person until after they had won the election. In 1864, Lincoln replaced Hamlin on the ticket with Andrew Johnson as part of a National Union strategy aimed at appealing to pro-Union Democrats during the war.
