Michael Avenatti called the White House "incompetent" on Wednesday following his release of a sworn declaration from a woman who claims Supreme Court nominee Brett Kavanaugh was involved in "gang" rapes at high school parties more than 35 years ago.

He added that the Trump administration's "chief information sources" are Fox News, Fox host Tucker Carlson and 4Chan.

The attorney made the comments in a response to a tweet by Vanity Fair's Gabriel Sherman, who reported the White House was shocked by claims made by Avenatti's client, Julie Swetnick.

"White House shocked by Avenatti claims. Privately aides involved in nomination saying “this could be end of the line” for Kavanugh, per outside adviser briefed on discussions," wrote Sherman.

White House shocked by Avenatti claims. Privately aides involved in nomination saying “this could be end of the line” for Kavanugh, per outside adviser briefed on discussions. — Gabriel Sherman (@gabrielsherman) September 26, 2018

"This shows how incompetent the [White House] is. This shows how incompetent the WH is. They must not have been paying attention the last 7 months. Guess their chief information sources are @FoxNews @TuckerCarlson and 4Chan," Avenatti said in a retweet of Sherman's report.

This shows how incompetent the WH is. They must not have been paying attention the last 7 months. Guess their chief information sources are @FoxNews @TuckerCarlson and 4Chan. https://t.co/vG2RjgyjA4 — Michael Avenatti (@MichaelAvenatti) September 26, 2018

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Avenatti clashed with Carlson two weeks ago, with the Fox host arguing Avenatti was exploiting porn star Stormy Daniels's lawsuit against President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE for his own gain and Avenatti calling Carlson's program and network "garbage."

There was also speculation on Tuesday that Avenatti was duped by a 4Chan user who conjured up allegations about Kavanaugh.

Kavanaugh on Wednesday vigorously denied the allegation by Swetnick, calling it something "out of the Twilight Zone."

“This is ridiculous and from the Twilight Zone. I don’t know who this is and this never happened," Kavanaugh wrote.

Trump also weighed in on Wednesday afternoon, and called out Avenatti by name for the first time.

"Avenatti is a third rate lawyer who is good at making false accusations, like he did on me and like he is now doing on Judge Brett Kavanaugh. He is just looking for attention and doesn’t want people to look at his past record and relationships - a total low-life!" he tweeted.

Avenatti responded to the president on Twitter, calling him a "habitual liar" and "disgrace as a president."

“'False accusations?' Like those crimes your fixer Cohen pled to? You are an habitual liar and complete narcissist who also is a disgrace as a president and an embarrassment to our nation. You are so inept that your 'best and brightest' are Cohen and Giuliani. Let’s go," he responded.

The Senate Judiciary Committee said it was in the process of reviewing Swetnick's allegation.

Kavanaugh and Christine Blasey Ford, the first woman to accuse him of sexual misconduct, are scheduled to testify before the Senate Judiciary Committee.