Mr Kushner became a target of the far-right news site amid reports of a fierce West Wing feud between himself and Stephen Bannon - Breitbart’s former executive chairman who is now Donald Trump's Chief Strategist.
Breitbart, a publication Mr Bannon has described as “the platform for the alt-right”, published three critical articles about Mr Kushner and plugged them on their homepage last week.
According to Business Insider, top editors at Breitbart have now instructed their journalists to stop criticising Mr Kushner, the husband of Mr Trump's daughter Ivanka, in their articles.
Breitbart had softened their attacks on Mr Kushner as of Tuesday, with no stories about him on the entirety of their homepage.
Breitbart has denied suggestions they told their staff not to be critical of Mr Kushner, saying it was “an absurd suggestion that Breitbart would muzzle critical coverage of any senior White House official."
Mr Bannon, the purported ideologue behind Mr Trump’s populism, resigned from Breitbart News in November and has claimed he no longer has any editorial involvement with the publication. The Trump aide took the reigns of the site around four years ago, transforming the agenda from ultra-conservatism to anti-establishment, anti-immigrant, nationalist and overtly pro-Trump during the presidential election.
The controversial orders Donald Trump has already issued
The controversial orders Donald Trump has already issued
1/9 Trump and the media
White House Press Secretary Sean Spicer takes questions during the daily press briefing
2/9 Trump and the Trans-Pacific Partnership
Union leaders applaud US President Donald Trump for signing an executive order withdrawing the US from the Trans-Pacific Partnership negotiations during a meeting in the Roosevelt Room of the White House in Washington DC. Mr Trump issued a presidential memorandum in January announcing that the US would withdraw from the trade deal
3/9 Trump and the Mexico wall
A US Border Patrol vehicle sits waiting for illegal immigrants at a fence opening near the US-Mexico border near McAllen, Texas. The number of incoming immigrants has surged ahead of the upcoming Presidential inauguration of Donald Trump, who has pledged to build a wall along the US-Mexico border. A signature campaign promise, Mr Trump outlined his intention to build a border wall on the US-Mexico border days after taking office
4/9 Trump and abortion
US President Donald Trump signs an executive order as Chief of Staff Reince Priebus looks on in the Oval Office of the White House. Mr Trump reinstated a ban on American financial aide being granted to non-governmental organizations that provide abortion counseling, provide abortion referrals, or advocate for abortion access outside of the United States
5/9 Trump and the Dakota Access pipeline
Opponents of the Keystone XL and Dakota Access pipelines hold a rally as they protest US President Donald Trump's executive orders advancing their construction, at Columbus Circle in New York. US President Donald Trump signed executive orders reviving the construction of two controversial oil pipelines, but said the projects would be subject to renegotiation
6/9 Trump and 'Obamacare'
Nancy Pelosi who is the minority leader of the House of Representatives speaks beside House Democrats at an event to protect the Affordable Care Act in Los Angeles, California. US President Donald Trump's effort to make good on his campaign promise to repeal and replace the healthcare law failed when Republicans failed to get enough votes. Mr Trump has promised to revisit the matter
7/9 Donald Trump and 'sanctuary cities'
US President Donald Trump signed an executive order in January threatening to pull funding for so-called "sanctuary cities" if they do not comply with federal immigration law
8/9 Trump and the travel ban
US President Donald Trump has attempted twice to restrict travel into the United States from several predominantly Muslim countries. The first attempt, in February, was met with swift opposition from protesters who flocked to airports around the country. That travel ban was later blocked by the Ninth Circuit Court of Appeals. The second ban was blocked by a federal judge a day before it was scheduled to be implemented in mid-March
SANDY HUFFAKER/AFP/Getty Images
9/9 Trump and climate change
US President Donald Trump sought to dismantle several of his predecessor's actions on climate change in March. His order instructed the Environmental Protection Agency to reevaluate the Clean Power Plan, which would cap power plant emissions
Tensions between Mr Bannon and Mr Kushner, who are believed to have conflicting ideological visions for the White House, have reached a head recently. Last week it was reported that Mr Bannon labelled Mr Kushner, who is Jewish, a “cuck” and a “globalist” behind his back.
“Cuckservative,” a portmanteau of “cuckold” and “conservative,” has become a popular slur used by members of the so-called alt-right movement and is used as a sexually and racially charged version of “RINO,” an acronym for “Republican In Name Only.” On its own, the word cuckold means a man whose wife has cheated on him and was often used by William Shakespeare.
Mr Bannon’s position in the Trump administration is seen to be waning by some and he was removed from the National Security Council last week.
Breitbart, which has mounting access to the White House, was dubbed “Trumpbart” before Mr Trump entered the White House. The President gave numerous interviews to the site in the build-up to the election, boosting its traffic to a 124 per cent spike in 2016.
Comment pieces published on the site include “Political Correctness Protects Muslim Rape Culture” and “Birth Control Makes Women Unattractive and Crazy”.
A representative for Breitbart did not immediately respond to a request for comment.