Local residents in Chicago rally to support street vendors during a federal immigration crackdown that has resulted in over 3,200 arrests since September.Community organizer Rick Rosales leads buy-out rides to help vendors by delivering food to shelters, while Delilah Martinez launched "Operation Buyout" to raise funds for financial relief.Advocacy groups stress the important cultural contributions of street vendors and aim to raise $300,000 to support those affected by declining sales due to the crackdown.