Over the past 12 months, the U.S. has seen an overhaul of the nation’s legal immigration system, crackdowns on undocumented immigrants and more changes at the U.S.-Mexico border as the Trump administration worked to fulfill the president’s 2016 campaign promises. CBS News immigration reporter Camilo Montoya-Galvez joined CBSN to discuss the impact and what we can expect in 2020. Source