After President Donald Trump nominated Judge Brett Kavanaugh to serve on the Supreme Court, Senator Kirsten Gillibrand (D–N.Y.) made her opinion of his pick clear: No. Way.

At a rally against the conservative judge held outside the high court, Gillibrand chanted along with protesters, one hand raised in a fist, the other brandishing a sign reading, "We the People Reclaim the Constitution."

"Everyone here knows what is at stake," she said, backed by a cheering crowd. "What is at stake is women's freedom—our freedom to make our own decisions…. Our voices, our stories, are what will make the difference in this nomination."

Gillibrand, who’s generated buzz as a possible 2020 White House contender, suggests Kavanaugh's nomination is a matter of life or death for women's rights—and possibly women themselves. She's convinced that, if Kavanaugh replaces retiring Justice Anthony Kennedy, he'll work to undermine the protections of Roe v. Wade—potentially sending the clock spinning back to a time when American women secretly sought dangerous, illegal abortions.

In an interview with Glamour, Gillibrand lambasted Trump’s SCOTUS pick as “dangerous” and framed his nomination as the biggest women’s rights issue in her lifetime. Here are the highlights:

Glamour: So what's the plan—how are you going to stop Brett Kavanaugh?

Kirsten Gillibrand: I'm going to speak out as loudly as I can, [and] I hope that every woman in America speaks out as well…. This is literally the biggest civil rights issue, certainly in my lifetime, for women. We are at the brink of not having reproductive freedom in this country, not having the ability to decide when and how many children we're going to have. This nominee believes that a boss should decide whether I get access to birth control…. We should fight back with everything we have—because everything's at stake.

Glamour: Kavanaugh has called late Supreme Court Justice William Rehnquist, who dissented in Roe v. Wade, one of his heroes, but he’s also said in past confirmation hearings that Roe is the law of the land.

KG: He said more than that. For example, he gave a speech to the American Enterprise Institute praising Rehnquist's dissent in Roe. He's saying, I see no reproductive freedom in the Constitution, under any amendment. Add to that [his] dissent in Garza [v. Hargan], where he said that allowing a woman to get access to abortion in a timely manner would create a new right to obtain immediate "abortion on demand." So I think he is directly opposed to Roe, and it shows in his decisions and his speeches. Also, he said he believes employers have a right to deny their employees health insurance coverage for birth control—so he believes his values [and] his religious beliefs are more important than any other woman's in America.

Glamour: Kavanaugh’s opponents say he would mean the end of Roe v. Wade. But that is not something that happens overnight.

KG: It could happen overnight. I think [he’ll take] any opportunity to vote against Roe in any form, whether it's narrowing it or overturning it. He literally believes he can rule outside of precedent. And I think we've seen that in a number of decisions. The most bizarre, bizarre quote [was when he said], “Under the Constitution, the president may decline to enforce a statute that regulates private individuals when the president deems the statute unconstitutional, even if a court has held or would hold the statute constitutional.” I think [Kavanaugh] is someone who will not follow precedent. And if he says he will, I think he's lying.