Chicago protesters breached a security fence outside the United Center on Monday as thousands inside prepared for the first night of the Democratic National Convention.

Chicago protesters breached a security fence outside the United Center on Monday as thousands inside prepared for the first night of the Democratic National Convention.

Chicago protesters breached a security fence outside the United Center on Monday as thousands inside prepared for the first night of the Democratic National Convention.

CHICAGO - Chicago protesters breached a security fence outside the United Center on Monday as thousands inside prepared for the first night of the Democratic National Convention.. What began as a ...