WATCH: Exclusive: Video of a bus dropping off dozens of migrants to illegally cross the US border. A migrant gets stuck at the top of wall in view of NBC News and border patrol.

WATCH: Exclusive: Video of a bus dropping off dozens of migrants to illegally cross the US border. A migrant gets stuck at the top of wall in view of @NBCNews and border patrol.

Is there a crisis on the border?@gabegutierrez travels to Nogales, AZ, to find out. pic.twitter.com/soB1Vp8UBn

— MSNBC (@MSNBC) January 20, 2019