http://www.newsweek.com/how-do-dna-test-kits-work-difference-between-birthplace-and-heritage-1011066

At a rally on Thursday night, President Donald Trump expressed skepticism at Senator Elizabeth Warren’s claims of Native American ancestry. To illustrate his point, he made some creative claims about how DNA tests work.

“You know those little kits they sell on television for two dollars?” Trump said at the rally, likely referring to genetic testing services like 23 And Me, Ancestry DNA, Living DNA and National Geographic’s Geno 2.0. In reality, these kits tend to cost around $99, or up to $199.