Who Is the Greatest American President?—PICTURES
Updated: February 21, 2012 | 9:10 a.m.
February 17, 2012 | 3:20 p.m.
CORRECTION: An earlier version of this article gave the wrong date of the Gallup poll. It is from 2011.
Ahead of the Presidents Day holiday, Gallup asked Americans who they thought the "greatest" U.S. president is. Here's how they responded: