In February, entrepreneur and MIT graduate V.A. Shiva Ayyadurai announced that he would be running for the U.S. Senate seat currently held by Elizabeth Warren, who has been mockingly referred to as "Pocahontas" by President Trump for falsely claiming Native American heritage.

Last week, Ayyadurai -- who proudly refers to himself as a "real Indian"-- threw a jab at the Massachusetts senator by sending her an all-expenses-paid DNA test kit from 23&Me via Amazon. Warren, apparently not amused, turned down the GOP challenger's gift.

V.A. Shiva Ayyadurai, who announced his candidacy earlier this year at a private fundraising event hosted by right-wing provocateur and "DeploraBall" organizer Mike Cernovich, took to Twitter to joke about Warren's rejection.

Ayyadurai stated he was "deeply saddened" by Warren's refusal to accept his "thoughtful gift."

GOP challenger says Warren is a fake fighter

Since announcing his candidacy, Ayyadurai -- who claims to be the inventor of email -- has relentlessly drilled the liberal Massachusetts lawmaker over her dubious claim of Native American ancestry. "For me, its about defending the American dream," Ayyadurai stated during the February fundraising event, "A real fighter and a real innovator exposing a fake fighter, which is what Elizabeth Warren is all about."

In May of 2012, the Boston Globe reported that Warren identified herself as Native American to Harvard University and the University of Pennsylvania, when she taught at both schools, in order to use her "minority status" as a way to further her career.

Top Videos of the Day

It evidently worked; a 1997 Fordham Law Review article referred to Warren as Harvard Law School's “first woman of color" even though Warren is Caucasian.

Warren fails to provide proof of Native American ancestry

The same 2012 report by the Boston Globe revealed that Warren was unable to furnish any tribal documentation or genealogical evidence proving Native American heritage, even though she voluntarily indicated minority status in her inclusion application for the Association of American Law Schools directory.

Harvard records show that the law school reported a Native American woman on its faculty for the academic year 1992-93, which coincides with Warren's stint at the university.

Prior to her stint at Harvard University and the University of Pennsylvania, Warren indicated on an official University of Texas form that she was white. Although she had the option to indicate Native American heritage on the University of Texas form, she did not check that box.