Trumps mother was foreign born. (Evidently she was a racist)
Are you that desperate?
Trump was born on June 14, 1946, in New York to U.S. citizen parents. He is therefore a natural born Citizen. His father, Fred C. Trump, was born on October 11, 1905, in New York, New York. His mother, Mary Anne (Mac Leod) Trump, was born on May 10, 1912, in Stornoway, Scotland. Trumps father was a U.S. citizen when he married Trumps mother, who at that time had not yet naturalized to be a U.S. citizen. Trump was born in the United States thereafter. Under merger of the husbands citizenship into that of the wife which was the doctrine existing at the time the Constitution was adopted and under Elg, this makes Trump a natural born Citizen.
In 1924, the Congress passed the Married Womens Act, also known as the Cable Act. This act gave each woman a nationality of her own. Under this act, an alien woman who married a U.S. citizen did not need to file a declaration of intention to become a U.S. citizen. She needed only to file a naturalization petition to become a U.S. citizen. Given their dates of birth, Trumps parents most probably married after 1924, the year the Cable Act was passed. Hence, Trumps mother would have had to naturalize on her own to acquire U.S. citizenship. Trumps mother naturalized to be a U.S. citizen on her own on March 10, 1942, which is over 4 years before Trump was born. Hence, when Trump was born, both his parents were "citizens of the United States." These birth circumstances make Trump a natural born Citizen.