ICE deported a mentally disabled man who spoke no spanish to mexico despite him providing multiple documents proving he was born in US. After the U.S Embassy flew him back to America, ICE was waiting to arrest him at the airport and he spent 6 days in jail while they tried to deport him again.

https://www.aclu.org/blog/speakeasy/us-citizen-wrongfully-deported-mexico-settles-his-case-against-federal-government