Julie Swetnick, the third woman to publicly accuse Brett Kavanaugh of sexual misconduct, appeared during a Monday night TV interview to contradict a claim she made against the Supreme Court nominee in a sworn declaration last week.

Swetnick, in her sworn statement, alleges she "became aware of efforts" in the 1980s by Kavanaugh and his Georgetown Preparatory School classmate Mark Judge, among others, to "spike the punch at house parties I attended with drugs and/or grain alcohol so as to cause girls to lose their inhibitions and their ability to say 'no.'"

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But when asked by NBC News Monday whether she saw Kavanaugh slip substances into drinks at those gatherings, Swetnick said she only witnessed him "by" the punch.

"I saw him giving red solo cups to quite a few girls during that time frame and there was grain punch at those parties," she said. "I would not take one of those glasses from Mark Kavanaugh — Brett Kavanaugh, excuse me."

"I saw him around the punch, I won't say bowls, the punch containers," Swetnick continued. "I don't know what he did. But I saw him by them, yes."

When asked to comment on the apparent walk back, Swetnick's lawyer, Michael Avenatti, said: "We have multiple witnesses that support the declaration. We look forward to speaking to the FBI and providing those witnesses."

[Michael Avenatti: One of Julie Swetnick's friends told her Kavanaugh was spiking the punch]

Swetnick has not been approached by the FBI as it conducts a supplemental background investigation into the accusations leveled at Kavanaugh, according to Avenatti. The bureau has to complete its probe within the week before the Senate pushes forward with Kavanaugh's confirmation process.