Texas, Arizona bus migrants to U.S. cities, and now Chicago. Here's what could happen next

First Washington, D.C., then New York City. Now Chicago. 

Officials from Texas and Arizona have been sending busloads of asylum seekers to those cities to the east for months. On Wednesday, Chicago joined New York and Washington when the first busloads of migrants from Texas arrived there. 

"President Biden's inaction at our southern border continues putting the lives of Texans --- and Americans -- at risk and is overwhelming our communities," Texas Gov. Greg Abbott said in a statement late Wednesday. "To continue providing much-needed relief to our small, overrun border towns, Chicago will join fellow sanctuary cities Washington, D.C. and New York City as an additional drop-off location."