Trump's Paternal Grandparents, Frederich (later anglicized to Frederick/Fred) and  Elizabeth Christ Trump were immigrants from the Kingdom of Bavaria (now  Rhineland-Palatinate). Fred left Bavaria without permission and dodged the draft,  He went to America and became successful. He married Elizabeth and had children while in the USA. His wife was getting homesick for Bavaria. Fred, Elizabeth, and the children left the USA for Bavaria. 
Fred Trump wanted to stay in Bavaria, BUT the Bavarian Authorities said no! They said Fred had left Bavaria without permission and avoided compulsory military service.  Fred, his wife, and family were forced back onto a boat to return to the USA. Fred Trump had been DEPORTED! 112 years later, his 5 time draft dodging grandson became the 45th President and has nativist policies. How ironic for a man that has many immigrants within 2 generations of himself.