SPRINGFIELD -- U.S. Sen. Elizabeth Warren, D-Massachusetts, pledged Monday to "fight for anti-discrimination provisions," including those that protect transgender individuals.

The senator, following an event in Springfield, spoke out against reports that the Trump administration is considering defining gender as a biological condition determined at birth -- a move which some have argued could undo Obama-era protections for transgender individuals.

Warren cast the reported effort as the latest example of the White House "trying to make discrimination more available all across the country."

"This is just fundamentally wrong. This is not who we are as a country, it does not reflect our best values," she said. "I will fight them on this, I will fight for anti-discrimination provisions."

Warren, who is up for re-election in November, further offered full-throated support for the Massachusetts ballot question that asks voters to weigh-in on the law that "adds gender identity to the list of prohibited grounds for discrimination in places of public accommodation, resort or amusement."

She argued that "'Yes' on (Question) 3 is 'No' on hate."

"That's who we are. We believe in the worth of every single human being and we do not discriminate," the senator said.

The New York Times reported Sunday that the U.S.Department of Health and Human Services is pushing an effort to establish a legal definition of sex under the federal civil rights law that bans gender discrimination in federally funded education programs.

HHS argued in a memo, which the newspaper reportedly obtained, that government agencies should adopt a uniform definition of gender based on biology, "that is clear, grounded in science, objective and administrable," according to the Times. It has proposed defining it as either "male or female, unchangeable and determined by the genitals that a person is born with," the newspaper reported.

If adopted, the definition could end the federal government's recognition of the more than 1 million Americans who have chosen to recognize themselves as another gender, undoing the Obama administration's efforts to loosen the legal concept in federal programs.

Republican U.S. Senate candidate Geoff Diehl, who is looking to unseat Warren, largely refrained from commenting on the Trump administration's reported efforts to modify the definition of gender.

The Whitman state representative, who has said he plans to vote "no" on Question 3, however, offered that he believes "in individual freedoms and the protections of those freedoms."

"I think we have discrimination laws on the books that currently protect people. And, if Massachusetts laws related to identity work for the rest of the country, that's something I'm willing to consider," he added in a Monday interview.