President Barack Obama boards Air Force One at Cleveland-Hopkins International Airport for departure from Cleveland, Ohio en route to Philadelphia, Pa., Nov. 14, 2013.

President Barack Obama boards Air Force One at Cleveland-Hopkins International Airport for departure from Cleveland, Ohio en route to Philadelphia, Pa., Nov. 14, 2013.

President Barack Obama delivers the address during The Ohio State University commencement at Ohio Stadium in Columbus, Ohio, May 5, 2013.

President Barack Obama delivers the address during The Ohio State University commencement at Ohio Stadium in Columbus, Ohio, May 5, 2013.

President Barack Obama joins The Ohio State University President E. Gordon Gee, left, and others before the start of commencement at Ohio Stadium in Columbus, Ohio, May 5, 2013.

President Barack Obama joins The Ohio State University President E. Gordon Gee, left, and others before the start of commencement at Ohio Stadium in Columbus, Ohio, May 5, 2013.

President Barack Obama greets First Lady Michelle Obama upon her arrival at Des Moines International Airport in Des Moines, Iowa, Nov. 5, 2012.

President Barack Obama greets First Lady Michelle Obama upon her arrival at Des Moines International Airport in Des Moines, Iowa, Nov. 5, 2012.

President Barack Obama signs the Wall of Freedom after an event at Mentor High School in Mentor, Ohio, Nov. 3, 2012.

President Barack Obama signs the Wall of Freedom after an event at Mentor High School in Mentor, Ohio, Nov. 3, 2012.

Oct. 25, 2012 "At a late night rally in Cleveland, supporters react as the President delivered his remarks."

Oct. 25, 2012
"At a late night rally in Cleveland, supporters react as the President delivered his remarks."

President Barack Obama has his picture taken with a patron at the West Side Market in Cleveland, Ohio, Oct. 5, 2012.

President Barack Obama has his picture taken with a patron at the West Side Market in Cleveland, Ohio, Oct. 5, 2012.

President Barack Obama boards Air Force One at Akron-Canton Regional Airport in North Canton, Ohio, Sept. 26, 2012.

President Barack Obama boards Air Force One at Akron-Canton Regional Airport in North Canton, Ohio, Sept. 26, 2012.

Sept. 8, 2012 "I love the headlight on the vehicle helping to light this frame taken by David Lienemann as the Vice President greets people gathered outside the Obama For America field office in Chillicothe, Ohio."

Sept. 8, 2012
"I love the headlight on the vehicle helping to light this frame taken by David Lienemann as the Vice President greets people gathered outside the Obama For America field office in Chillicothe, Ohio."

President Barack Obama samples fudge offered by Squirrel’s Den fudge shop owner LaDonna Secrist, left, during a stop in Mansfield, Ohio, Aug. 1, 2012.

President Barack Obama samples fudge offered by Squirrel's Den fudge shop owner LaDonna Secrist, left, during a stop in Mansfield, Ohio, Aug. 1, 2012.