Rick Santorum speaks in Lake County, Ohio

Rick Santorum speaks in...

4 photos

Mitt Romney town hall in Dayton, Ohio

Mitt Romney town hall in...

16 photos

On the trail in Cleveland

On the trail in Cleveland

15 photos

Martin Luther King Jr. Memorial

Martin Luther King Jr....

13 photos

Yellowstone River Oil Spill

Yellowstone River Oil Spill

93 photos