Michael Avenatti, the lawyer who represents a woman who claimed Supreme Court nominee Brett Kavanaugh was at a party where she was gang-raped, blasted Sen. Susan Collins for dismissing that "outlandish" allegation.

Collins' speech was a dramatic cap to Kavanaugh's nomination process, and made it clear he was on the way to being confirmed by the Senate. It was also a slap to Democrats who many Republicans say used highly questionable information to smear the nominee.

But Avenatti accused her while she was speaking of channeling President Trump.

"Senator Collins is channeling Donald Trump," he said on Twitter. "Entirely disingenuous and shameful. Where was she when Judge Garland could not even get an up or down vote?"

Collins met with Obama's Supreme Court nominee, Merrick Garland, in 2016 and called for a hearing on the nominee at a time when Republican leaders were refusing to move him along in the process.

"This is all about her post-office job opportunities on K street," he added. "We shall never forget. Not in Nov. Not in 2020. Not ever."

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In her floor speech, she said claims by Avenatti's client, Julie Swetnick, "outlandish," and said they are a "stark reminder about why the presumption of innocence is so ingrained."

In a second tweet, Avenatti said she should be "ashamed of herself" for attacking his client.

"How did she make a credibility determination as to my client?" he asked. "How is she qualified to do that without ANY investigation? She did ZERO to determine whether my client and her witnesses were credible."