Sen. Kamala Harris Kamala HarrisTexas Democratic official urges Biden to visit state: 'I thought he had his own plane' The Hill's Campaign Report: Biden on Trump: 'He'll leave' l GOP laywers brush off Trump's election remarks l Obama's endorsements A game theorist's advice to President Trump on filling the Supreme Court seat MORE (D-Calif.) hit back at Donald Trump Jr. Don John Trump'Tiger King' star Joe Exotic requests pardon from Trump: 'Be my hero please' Zaid Jilani discusses Trump's move to cancel racial sensitivity training at federal agencies Trump International Hotel in Vancouver closes permanently MORE late Friday after the president's son criticized her for laughing at her own joke.

"You wouldn’t know a joke if one raised you," the Democratic presidential candidate tweeted, apparently taking aim at President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE.

You wouldn’t know a joke if one raised you. https://t.co/zUV3MLkmVm — Kamala Harris (@KamalaHarris) October 12, 2019

The younger Trump on Friday posted a video of Harris speaking and laughing.

ADVERTISEMENT

"Why is @KamalaHarris the only person that laughs at her jokes... always way to long and way too hard?" he wrote.

"The most disingenuous person in politics... after Hillary," he added, referring to his father's 2016 Democratic presidential rival Hillary Clinton Hillary Diane Rodham ClintonBloomberg rolls out M ad buy to boost Biden in Florida Hillicon Valley: Productivity, fatigue, cybersecurity emerge as top concerns amid pandemic | Facebook critics launch alternative oversight board | Google to temporarily bar election ads after polls close Trump pledges to make Juneteenth a federal holiday, designate KKK a terrorist group in pitch to Black voters MORE.

Harris, one of more than a dozen people running for the 2020 Democratic presidential nomination, frequently bashes the president and his policies while on the campaign trail.

Earlier this week, she said he should be in "timeout" from appointing Supreme Court nominees while undergoing an impeachment inquiry.

Harris is slated to appear alongside 11 other candidates in next week's Democratic debate.