In response to Trump's challenge, Elizabeth Warren releases DNA test — but what does it prove?

In response to challenges from President Donald Trump, Sen. Elizabeth Warren (D-Mass.) released a DNA test on Monday that was supposed to prove that she has Native American heritage, but instead may prove that she has less Native American heritage than the average American of European descent in the United States.

"While the vast majority of the individual’s ancestry is European, the results strongly support the existence of an unadmixed Native American ancestor in the individual’s pedigree, likely in the range of 6-10 generations ago," the test concluded.

What are the results?

The results determined that she had five segments of Native American ancestry, which totaled 25.6 centiMorgans in length. A person's total genetic length is 7,190 centiMorgans.

However, the test noted, it used DNA samples from Mexico, Peru, and Columbia to determine Native American ancestry.

"For Native American references, we used samples within the 1000 Genomes project of Native American ancestry; these samples come from Mexico, Peru, and Colombia. (It is not possible to use Native American reference sequences from inside the United States, since Native American groups within the U.S. have not chosen to participate in recent population genetics studies,)" the report said.

If you consider that a generation is approximately 30 years, that would mean her full-blooded Native American ancestor dates back at least 100 years prior to Warren's birth in 1949.

The results suggest that Warren is between 1/64th and 1/1024th Native American.

It also means that she may have less Native American than the average European American who has 0.18 percent Native American DNA, according to a 2015 study published by the Genetic Literacy Project.

Warren released her results on her website in an apparent attempt discredit President Donald Trump, who has questioned her claims about her family's heritage and has nicknamed her "Pocahontas."

Warren, who was born and raised in Oklahoma, has long claimed that her great-great-great-grandmother O.C. Sarah Smith had some Native American heritage.

Genealogists who have researched Warren's family tree have found no trace of Native American roots as far back as the 1700s, according to Indian Country Today.

Why does it matter?

Warren formally claimed she was a Native American after she was hired by the University of Pennsylvania.

And as a former professor at Harvard Law School, Warren had listed herself as a member of a minority group in a law school directory, according to the New York Times.

She has also repeatedly told the story of how her parents were forced to elope in 1932 because her paternal grandparents were so racist against her mother's Cherokee Indian blood.

In 1984, Warren contributed five recipes to a Native American cookbook called "Pow Wow Chow," according to Politifact. Under each recipe, she listed herself as "Elizabeth Warren, Cherokee."

But experts have not been able to trace Warren's family on any tribal rolls and one even pointed out that her parents announced their marriage in the newspaper upon their return, which didn't add up if there was shame placed on their union, according to a report by Fox News in March.

“When I decided to run for Senate in 2012, I never thought that my family’s Native American heritage would come under attack and my dead parents would be called liars,” Warren said in a statement on Monday, Reuters reported.

“And I never expected the president of the United States to use my family’s story as a racist political joke,” she added.

A big part of a person's Native American ancestry is based on the culture, to which Warren admitted to having no ties in an address to the National Congress of American Indians, earlier this year, according to the New York Times.

Having a minuscule amount of DNA and no tribal affiliations do not support Warren's claims of being Native American.

Who did the analysis?

Warren did not take a commercial DNA test, such as Ancestry or 23&Me.

Instead, her DNA was analyzed by Carlos D. Bustamante, a Stanford University professor and well-known expert in the field of population genetics.

Warren reportedly provided a DNA to a private lab in Georgia this summer, which was sent to Bustamante for analysis, according to a senator’s aide.

The report was sent to the senator last week.

What did Trump say?

In July, Trump challenged Warren to take a DNA test. He said he would donate $1 million to her favorite charity if she turned out to be part Native American.

On Monday, Trump responded, "Who cares," when asked by reporters what he thought about Warren's test results.

What else?

Warren is seeking re-election for a second term against Republican state Rep. Geoff Diehl and independent Shiva Ayyadurai.

Some believe Warren's DNA test is in preparation for her to make a 2020 run for the White House.

She has stated her plans to take a “hard look” at running for the Democratic nomination after the midterm elections, according to the Boston Globe.

Watch the video the Warren campaign released: