Trump has called the expansion of federal immigration agents and National Guard troops into American cities necessary, blasting Democrats for crime and lax immigration policies. Chicago raises discrimination claimsMany Chicagoans were already uneasy after a federal immigration crackdown began earlier this month. Dozens of Border Patrol agents walking Michigan Avenue and upscale neighborhoods on Sunday skyrocketed the response. The court cleared the way for immigration agents to stop people based on race, language, job or location. Chicagoans trail Border PatrolAs Border Patrol agents marched near downtown, a trail of activists and citizens followed closely.