Confederate battle flag controversy

Hundreds of people gather for a protest rally against the Confederate flag in Columbia, S.C.

A man holds a sign up during a protest rally against the Confederate flag in Columbia, S.C.

Hundreds of people gather for a protest rally against the Confederate flag in Columbia, S.C.

The Confederate flag is seen here at the South Carolina State House Building in Columbia, South Carolina on Saturday, June 20, 2015.

The Confederate flag has flown by the South Carolina Statehouse for 15 years.