We have the government of Bavaria to blame!!

Not widely reported, but trump's grandfather, Friedrich, originally came to the US when he was 16, but years later decided to return to Bavaria. In 1905, the Bavarian Government realized that he didn't serve his mandatory time in the military, essentially was a draft dodger (like grandfather, like grandson!) so they deported him back to the US.

Rather than post links to the various articles about this, here is the Snopes link that ties them all together:

http://www.snopes.com/trumps-grandfather-bavaria-deport/

Did Trump’s Grandfather Beg the Government of Bavaria Not To Deport Him?

President Trump’s grandfather Friedrich unsuccessfully petitioned the government of Bavaria (now southeast Germany) not to deport him and his family.

RATING - TRUE

Excerpts of the story:

On 1 March 2017, Harper’s magazine published a translation of a letter written by President Donald Trump’s grandfather, Friedrich Trump, to Prince Luitpold of Bavaria, in which he pled (unsuccessfully) for the Prince regent to reconsider his family’s deportation.

The letter was found in a local German archive and was first published in the German newspaper Bild on 21 November 2016. The Associated Press confirmed the story in a bulletin posted that same day.

The back story to this letter (and Trump’s ultimate deportation from Bavaria) began when Friedrich first arrived in America as a 16-year-old barber’s apprentice in 1886. He bounced around a variety of apartments and jobs in New York before moving to Washington state in 1891 and finding financial success even further north in Canada during the Gold Rush, as discussed in a New Yorker profile of him.

In 1902, during a trip back to his hometown of Kallstadt, Frederick Trump married a local woman named Elizabeth Christ and brought her home with him to New York during a trip back to his hometown of Kallstadt, Frederick Trump married a local woman named Elizabeth Christ and brought her home with him to New York. "Sadly, she could not tolerate the climate in New York, and I went with my dear family back to Kallstadt."

~~~~~~~~~~~~~~~~~~~

The official notice of Trump’s deportation read: “The American citizen and pensioner Friedrich Trump, currently residing in Kallstadt, is hereby informed that he is to depart the state of Bavaria, or face deportation.”

Friedrich and Elisabeth returned to New York in July 1905 during Elizabeth’s pregnancy with Fred Trump, Donald Trump’s father.