Who is the most influential president in history?
Abraham Lincoln is mostly regarded as the greatest president for his leadership during the Civil War and the abolition of slavery. His main contender is Franklin D. Roosevelt, for leading the country out of the Great Depression and during World War II.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: Who is the most influential president in history?
### Input: 
### Response: Abraham Lincoln is mostly regarded as the greatest president for his leadership during the Civil War and the abolition of slavery. His main contender is Franklin D. Roosevelt, for leading the country out of the Great Depression and during World War II.