Professor Pamela Karlan deviated from her prepared opening remarks during the House Judiciary Committee's first impeachment hearing on Wednesday to push back on the notion that she had not read earlier witness testimony or researched the facts of the case against President Trump Donald John TrumpBiden says voters should choose who nominates Supreme Court justice Trump, Biden will not shake hands at first debate due to COVID-19 Pelosi: Trump Supreme Court pick 'threatens' Affordable Care Act MORE.

“Here, Mr. Collins, I would like to say to you, sir, that I read transcripts of every one of the witnesses who appeared in the live hearing, because I would not speak about these things without reviewing the facts, so I’m insulted by the suggestion that as a law professor I don’t care about those facts,” she said, addressing Rep. Doug Collins Douglas (Doug) Allen CollinsDemocrats ramp up pressure on Lieberman to drop out of Georgia Senate race The Hill's Campaign Report: Biden on Trump: 'He'll leave' l GOP laywers brush off Trump's election remarks l Obama's endorsements GOP, Democrats look to galvanize women with SCOTUS fight MORE (R-Ga.), the panel's ranking member.

Pamela Karlan *is not* messing around: "Here Mr. Collins I would like to say to you, sir, that I read transcripts of every one of the witnesses who appeared in the live hearings ... I'm insulted by the suggestion that as a law professor I don't care about those facts." pic.twitter.com/TXhmZXVWiM — Aaron Rupar (@atrupar) December 4, 2019

The Stanford Law School professor, a Democratic witness, then resumed her opening statement, but varied the wording slightly from prepared testimony, emphasizing her background reading.

ADVERTISEMENT

“Everything I read about our Constitution and its values, and my review of the evidentiary record, tells me that when President Trump invited — indeed, demanded — foreign involvement in our upcoming election, he struck at the very heart of what makes this country the ‘republic’ to which we pledge allegiance,” Karlan continued.

Her prepared remarks state “everything I know” rather than “read.”

The Judiciary Committee is hearing from four witnesses on Wednesday as part of the House impeachment inquiry into Trump's dealings with Ukraine.