There are perfectly good reasons she might have been reluctant up until now to come forward - for instance, because women who make sexual assault allegations are routinely disbelieved and attacked, she may have chose to go public only when she saw that Christine Blasey Ford's allegation about Kavanaugh was taken seriously enough to warrant a Judiciary Committee hearing.
They appear to be assuming that Judge Kavanaugh should not enjoy the American presumption of innocence and - without hearing a word from Ms. Ford or seeing any corroborating evidence - have concluded that Judge Kavanaugh must be guilty of this alleged offense and thus can not be confirmed.
Before we get to the specifics of Swetnick's allegations, we should make something clear.
"Many years after. I'll leave it at that", Kavanaugh said.
Also on Monday, Kavanaugh said he would not step aside, saying "the truth is I've never sexually assaulted anyone, in high school or otherwise".
She testified before the Senate Judiciary Committee then, too, in a highly publicized spectacle.
Swetnick is represented by lawyer Michael Avenatti, who also represents adult film star Stormy Daniels in a lawsuit against Trump to void a non-disclosure agreement under which the president's former personal lawyer paid her $130,000 not to discuss her alleged relationship with Trump more than a decade ago.
A third woman has presented the Senate Judiciary Committee with allegations of inappropriate behavior by Supreme Court nominee Brett Kavanaugh, accusing him of sexually aggressive behavior at alcohol-fueled parties when he was in high school.
Kavanaugh has steadfastly denied all the allegations.
"I am innocent of this charge", Mr Kavanaugh says.
Prof Ford alleges Judge Kavanaugh tried to drunkenly remove her clothing, pinned her to a bed and covered her mouth at a high school party when she was 15 and he was 17. Instead, they have aimed their frustration at Feinstein, the committee's top Democrat, who Republicans say created a situation that is unfair to both Ford and Kavanaugh.
One note of caution: While Flake's undecided colleagues consider what Kavanaugh's nomination might mean for abortion rights or how the assault accusations will play back home, the Arizonan, at least publicly, is most concerned with the high court nominee's take on presidential power. "They're playing a con game, and they play it very well".
She said she had witnessed efforts by "Kavanaugh and others to cause girls to become inebriated and disoriented so they could then be "gang raped" in a side room or bedroom by a "train" of numerous boys".
"Laughing, how they fooled you all", Trump said to reporters.
The White House had no immediate comment.
No matter how the committee votes, the full Senate will vote on Kavanaugh's appointment.
Believing this is a lie requires you to believe that Ford would choose to sacrifice the placid and by all accounts rewarding life she's been leading as a university professor, wife and mother in order to cast false aspersions on someone with whom she's had no contact for well over 30 years. People want fame, they want money, they want whatever. He and Ford are scheduled to testify on Thursday.
"Christine did not mention the assault to me again until June 29, 2018, two days after Justice Anthony Kennedy announced his resignation from the Supreme Court of the United States", he said.
A handful of undeclared GOP moderates leave Kavanaugh's fate uncertain because the party runs the Senate with just a 51-49 advantage. He accused Republicans of continually changing conditions of how Ramirez could tell her story.