Violent protesters descended on Portland late Saturday, an almost weekly occurrence, this time rioting over President Joe Biden's administration reopening a controversial migrant center designed to house minors who illegally entered the United States without their parents. What happened? Violent protesters, who were reportedly associated with Antifa, marched down the streets of Portland's Pearl District smashing cars and vandalizing businesses. More from KOIN-TV: Businesses in the district have been coated with graffiti decrying police and Immigration and Customs Enforcement. Demonstrators also broke windows at some businesses. A Chipotle on Northwest Lovejoy Street had its windows smashed out at around 9:30...