Stanford Law School Professor Pamela Karlan, an impeachment witness for House Democrats, took a shot at President Donald Trump’s 13-year-old son, Barron Trump, during the House Judiciary Committee’s impeachment hearing on Wednesday. The attack spurred intense backlash online.

While talking about the differences between kings and presidents, Karlan said, “So while the president can name his son Barron, he can’t make him a baron.”

WATCH:

Democrat "witness" Pamela Karlan is completely UNHINGED. She is now attacking @realDonaldTrump's 13 year old son Barron Trump in an attempt to smear President Trump.#StopTheMadness #JerryRigged pic.twitter.com/4aktNR2Tps — Steve Guest (@SteveGuest) December 4, 2019

Karlan’s comments spurred an immediate and intense reaction online.

In a statement, Trump 2020 national press secretary Kayleigh McEnany wrote:

Only in the minds of crazed liberals is it funny to drag a 13-year-old child into the impeachment nonsense. Pamela Karlan thought she was being clever and going for laughs, but she instead reinforced for all Americans that Democrats have no boundaries when it comes to their hatred of everything related to President Trump. Hunter Biden is supposedly off-limits according to liberals, but a 13-year-old boy is fair game. Disgusting. Every Democrat in Congress should immediately repudiate Pamela Karlan and call on her to personally apologize to the President and the First Lady for mocking their son on national TV.

Former senior White House aide Cliff Sims wrote: “These people are sick losers. This is what happens when you think Twitter is real life—you bring up your political opponents’ underage children to get lols.”

These people are sick losers. This is what happens when you think Twitter is real life—you bring up your political opponents’ underage children to get lols. https://t.co/iHDoqusPVc — Cliff Sims (@Cliff_Sims) December 4, 2019

Fox News host Laura Ingraham wrote: “Karlan’s cheap shot invoking Baron Trump’s name just lost them any shred of hope that they’re going to win this impeachment battle in the court of public opinion.”

Karlan’s cheap shot invoking Baron Trump’s name just lost them any shred of hope that they’re going to win this impeachment battle in the court of public opinion. — Laura Ingraham (@IngrahamAngle) December 4, 2019

CBS News reporter Kathryn Watson expressed shock over the comment, writing: “Oh my. Karlan: While the president can name his son Barron, he can’t make himself baron”

Oh my. Karlan: While the president can name his son Barron, he can't make himself baron — Kathryn Watson (@kathrynw5) December 4, 2019

Trump critic Tom Nichols disapproved of the remark, writing: “Karlan’s ‘Barron’ joke. Rolling my eyes so hard. Cripes.”

Karlan's "Barron" joke. Rolling my eyes so hard. Cripes. — Tom Nichols (@RadioFreeTom) December 4, 2019

NewsBusters Managing Editor Curtis Houck wrote: “Liberal journalists don’t care that Harlan invoked Barron Trump. Why? Because it’s something they would do.”

Liberal journalists don't care that Harlan invoked Barron Trump. Why? Because it's something they would do — Curtis Houck (@CurtisHouck) December 4, 2019

Team Trump wrote: “So Hunter Biden is off limits, but 13 year old Barron Trump is not? This gets more unreal by the minute!”

So Hunter Biden is off limits, but 13 year old Barron Trump is not? This gets more unreal by the minute! — Team Trump (@TeamTrump) December 4, 2019

Fox News contributor Mollie Hemingway wrote: “One of Democrats’ impeachment witnesses, the one who says she can’t walk on the sidewalk in front of Trump hotel because of her hatred for Bad Orange Man, just went after Barron Trump, if you’re wondering how things are going.”

One of Democrats' impeachment witnesses, the one who says she can't walk on the sidewalk in front of Trump hotel because of her hatred for Bad Orange Man, just went after Barron Trump, if you're wondering how things are going. — Mollie (@MZHemingway) December 4, 2019

OANN host Liz Wheeler wrote: “Republicans: What evidence is there for impeachment? Democrats: LET’S INVOKE BARRON TRUMP.”

Republicans: What evidence is there for impeachment? Democrats: LET'S INVOKE BARRON TRUMP. — Liz Wheeler (@Liz_Wheeler) December 4, 2019

Rep. Paul Gosar (R-AZ) wrote: “Hunter Biden is off limits but Barron Trump isn’t…”

Hunter Biden is off limits but Barron Trump isn’t… https://t.co/NykrnEtdV9 — Rep. Paul Gosar, DDS (@RepGosar) December 4, 2019

Dana Loesch wrote: “But don’t go after Biden’s 50 year-child.”

But don’t go after Biden’s 50 year-child. https://t.co/Q8L0mGOsN0 — Dana Loesch (@DLoesch) December 4, 2019

Federalist co-founder Sean Davis wrote: “Media eagerly rode to the rescue to prevent any criticism of Joe Biden’s 50-year-old, cocaine-snorting, stripper-impregnating, Ukrainian oligarch-coddling ‘child,’ but I’m skeptical that we’ll see them defend Trump’s 13-year-old son with the same vigor.”

Media eagerly rode to the rescue to prevent any criticism of Joe Biden's 50-year-old, cocaine-snorting, stripper-impregnating, Ukrainian oligarch-coddling "child," but I'm skeptical that we'll see them defend Trump's 13-year-old son with the same vigor. https://t.co/gxPmYZMG4a — Sean Davis (@seanmdav) December 4, 2019

Davis added: “One of the Democrats’ star impeachment witnesses just attacked the president’s 13-year-old child to justify her zeal to overturn the 2016 elections via impeachment. This farce somehow keeps getting worse for Democrats.”

One of the Democrats' star impeachment witnesses just attacked the president's 13-year-old child to justify her zeal to overturn the 2016 elections via impeachment. This farce somehow keeps getting worse for Democrats. https://t.co/Vw5KVEWAyK — Sean Davis (@seanmdav) December 4, 2019

Mickey White wrote: “WTF is the crazy woman?”

WTF is the crazy woman? https://t.co/ws1D65FpKR — Mickey White (@BiasedGirl) December 4, 2019

Attorney Matthew Kolken wrote: “Her line was clearly premeditated and rehearsed, which includes a pause after delivery designed for dramatic effect to allow an opportunity for an audience response, coupled with a smug look of satisfaction from slam dunking on a child. Not exactly winning hearts and minds.”

Her line was clearly premeditated and rehearsed, which includes a pause after delivery designed for dramatic effect to allow an opportunity for an audience response, coupled with a smug look of satisfaction from slam dunking on a child. Not exactly winning hearts and minds. https://t.co/Zc8OBYbpAS — Matthew Kolken (@mkolken) December 4, 2019

Actor Nick Searcy tweeted: “Leftists are sick with hatred, and this lady is one of the sickest.”

Leftists are sick with hatred, and this lady is one of the sickest. https://t.co/5pUhTx6HLc — Nick Searcy, ESCHEWER OF MALARKEY AND STAR (@yesnicksearcy) December 4, 2019

The Trump War Room tweeted: “Democrats chose liberal professor Pam Karlan as their star impeachment witness. She just went out of her way to mock and attack Barron Trump, the President’s 13-year-old child. Democrats have disgraced themselves by giving a platform to this unhinged, petty kook.”