TIME.com

chooses Teddy Roosevelt ran for a third term under the Progressive Party:

Social Security, regulation of stock trading, a minimum wage--those ideas would not be adopted until the presidency more than two decades later of his distant cousin Franklin. But T.R. set them seriously in motion.

It is also his foreign policy of carrying "a big stick" that we are delightfully living in. He is on Mt. Rushmore, holding his own with Washington, Jefferson, and Lincoln.