Elizabeth Warren's ex-husband founded DNA testing company

Sen. Elizabeth Warren's ex-husband co-founded a DNA testing company and wrote one of the first computer codes for making genetic comparisons.

Jim Warren's career involved him in the kinds of genetic testing that Elizabeth Warren controversially invoked this month to prove that she had Native American ancestry.

One of the two other co-founders of his testing company, FamilyTreeDNA, has worked with Carlos Bustamante, the Stanford University geneticist who administered a DNA test at Elizabeth Warren's request.

Bustamante, a Stanford University geneticist, conducted the test, which Elizabeth Warren used to respond to President Trump's "Pocahontas" taunt and his mockery of her previous claim to be a Native American while a professor at Harvard Law School in the 1990s. Warren's roll-out of the test results was widely seen as a sign that she is running for president in 2020.

Rather than using a commercial service to conduct her DNA test, Warren hired Bustamante, 43, who appears in the video explaining the test and in a scene in which the Massachusetts senator telephones his office and asks to speak with him. Warren received considerable criticism for the test, which found that her Native American heritage stretch back six to 10 generations, making her between 1/64th and 1/1024th Native American.

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