geni provides certain pathways but I have found that our families are related in several was among the closest is 12th cousin thrice removed
Mills>de Revere Pratt > Alcott Pratt> Bronson Pratt > Alcott > May > Gore of Roxbury > Rose 1st of Bellivat> Gordon> Cumming of Altyre >Munro of Bunchrew> McKay Of Halmdary>MacLeod (Trump)
I'm assuming that this request is in regards to the meme going around about her being an undocumented immigrant. As shown by journalists (like The Washington Post staff) and genealogists (like Megan Smolenyak) alike, this is false. You can actually see her naturalization petition at https://mobile.twitter.com/megansmolenyak/status/824353604396056577
What *is* true is that Donald Trump's paternal grandfather, Frederick Trump, left Germany illegally. He was eventually granted a waiver by the U.S. and became a citizen as well. If you want to read the entire story, replete with ample citations, it's covered in the book "Trump Revealed" by The Washington Post, which the Trump family cooperated on. Try the preview at http://amzn.to/2kemX2i or get a library copy at https://www.worldcat.org/title/trump-revealed-an-american-journey-o... for the full history.
So, as is so often the case, memes have grains of truth but not much substance. Yes, a recent ancestor had documentation and legality issues; no, Trump's mother was not "illegal."