Supporters take pictures as Democratic presidential candidate Hillary Rodham Clinton speaks to local residents during a campaign stop at the Iowa City Public Library, Tuesday, July 7, 2015, in Iowa City, Iowa.
Supporters take pictures as Democratic presidential candidate Hillary Rodham Clinton speaks to local residents during a campaign stop at the Iowa City Public Library, Tuesday, July 7, 2015, in Iowa City, Iowa. Charlie Neibergall AP
Supporters take pictures as Democratic presidential candidate Hillary Rodham Clinton speaks to local residents during a campaign stop at the Iowa City Public Library, Tuesday, July 7, 2015, in Iowa City, Iowa. Charlie Neibergall AP

Why is Clinton spending so much money?

July 14, 2015 2:00 AM