[9] In December 2015, during a visit to Moscow presumed by multiple sources to have been paid for by the Kremlin,[28][31] Blumenthal was a guest at RT's 10 Years On Air anniversary party attended by President Vladimir Putin, then-Lieutenant General Michael Flynn of the United States and English politician Ken Livingstone.

[38] In an October 2019 article for New Politics magazine, London-based Lebanese academic Gilbert Achcar wrote that Blumenthal's Grayzone, along with the World Socialist Web Site, has "the habit of demonizing all left-wing critics of Putin and the likes of Assad by describing them as 'agents of imperialism' or some equivalent".

[42] Blumenthal wrote about the rise of the so-called "Minuteman" movement for Salon in 2003, describing its members as "border vigilantes" who "have harassed and detained hundreds, perhaps thousands, of migrants suspected of entering the country illegally.

It featured interviews with attendees at the July 2007 College Republican National Convention in Washington, D.C. Blumenthal asked why they, as Iraq War supporters, had not enlisted in the United States Armed Forces.

The video was recorded the day before President Barack Obama's Cairo address on June 4 and showed man-on-the-street interviews with possibly drunk Jewish-American young people in Jerusalem.

[53] In 2011, Blumenthal reported that Israeli occupation forces and Bahraini monarchy guards trained American police departments in anti-protester techniques, including torture, and quoted Fordham University Law Professor Karen J.

[69] Alterman's statement in his original piece about the book being "technically accurate" was queried and he explained it was an issue of context, as Blumenthal "tells us only the facts he wishes us to know and withholds crucial ones that undermine his relentlessly anti-Israel narrative.

[74] Petra Marquardt-Bigman wrote that the "single-minded effort in Goliath to portray Israel in an extremely biased way in order to promote comparisons to Nazi Germany that would justify political campaigns aimed at eliminating the Jewish state qualifies even under the most stringent criteria" as being antisemitic.

[36] Blumenthal appeared before the Russell Tribunal on Palestine on September 25, 2014, in Brussels, Belgium, to testify on allegations of war crimes and genocide by Israel against residents of the Gaza Strip during Operation Protective Edge.

[83] Blumenthal and Canadian-Israeli journalist David Sheen were invited by Inge Höger and Annette Groth, members of The Left (Die Linke) party, to speak with them in the German parliament in Berlin, the Bundestag, with the meeting being scheduled for November 12, 2014.

In an e-mail explaining the ban, Bundestag president Norbert Lammert stated: "Every attempt to exert pressure on members of parliament, to physically threaten them and thus endanger the parliamentary process is intolerable and must be prevented".

He stated that Israel's West Bank operation was not aimed at rescuing the teens, who were known to be dead, or capturing their killers, but destroying a political agreement between Hamas and the Palestinian National Authority by targeting the Third Hamdallah Government.

[92] Of the Battle of Shuja'iyya in July 2014 in 51 Days War, Blumenthal wrote of the Al-Qassam Brigades (the military wing of Hamas) who ambushed Israel Defense Forces soldiers, that although they "had not vanquished the vaunted Israeli Army", "they delivered a bloody nose to its most elite units.

"[93] Sonali Kolhatkar wrote in the Los Angeles Review of Books that "Blumenthal's casting of the Al-Qassam Brigades as an army of resistance against a brutal aggressor is an essential transgression from the standard narrative of the Middle East conflict.

"[93] In a video recording of an event at the London School of Economics in March 2016, Blumenthal described the Al-Qassam commandos as having "burst into the [Nahal Oz] Israeli base and kill[ed] every soldier they encountered in hand-to-hand combat.

[95] Avi Benlolo CEO of the Simon Wiesenthal Center told The Canadian Jewish News in 2016: "While shunned by conventional media outlets, the book is popular on major anti-Semitic, neo-Nazi and conspiracy theory websites such as Stormfront and David Duke's Rense, where his work is used to promote anti-Jewish hate.

Perach accused Blumenthal of manipulating sources by selectively cutting out inconvenient passages, editing, distorting and changing the meaning, and pushing details while obscuring the main facts.

In an interview with The Real News Network shortly afterwards, Blumenthal was critical of Syrian president Bashar al-Assad, describing him as a dictator and saying that, "by all accounts", forces affiliated with Assad were responsible for the Houla massacre.

"[112] After Blumenthal's visit to Moscow in December 2015, according to a 2018 article by Janine di Giovanni in The New York Review of Books, he began to promote views supportive of Bashar al-Assad and the Syrian government's position.

Davis wrote: "In fact, a White Helmet's member was among the first civilians to appear on camera at the scene of the attack, declaring in English that 'the regime helicopters targeted this place with four barrel [bombs]'."

[9] Charles Davis stated that The Grayzone published an article by Blumenthal and Benjamin Norton which cast doubt on the Syrian government's responsibility for the 2017 Khan Shaykhun chemical attack.

[115] "I cannot think of one pundit on the national scene, in cable news or in any major newspaper who has questioned the drive for regime change in Syria", he told Al Jazeera in an interview in June 2018.

"[116] In September 2019, Blumenthal was part of an American delegation which visited Damascus to participate in an Assad-backed trade union convention and to stand "against the economic blockade, imperialist interventions and terrorism."

Bellingcat wrote that recent visitors and a tour operator in Damascus had told it that Syria was not generally issuing travel visa to US citizens at the time Blumenthal visited.

[31][117][118][119] Muhammad Idrees Ahmad, writing for Al Jazeera, said the delegation included Rania Khalek, Paul Larudee of the Syrian Solidarity Movement, Ajamu Baraka, former RT producer Anya Parampil and "other pro-Assad conspiracy theorists".

"[122] In November 2017, Blumenthal discussed the decision of the United States Department of Justice to classify RT as a "foreign agent" in an interview with Tucker Carlson on Fox News.

[35] Peter Beinart wrote in The Atlantic that while Blumenthal and Glenn Greenwald have a strong dislike of President Donald Trump, they are more fundamentally against "hawkish" US foreign policy resulting in them minimizing "Russia's election meddling to oppose what they see as a new Cold War".

[7] For his writing concerning Ukraine, Sławomir Sierakowski, the chief editor of the Polish left-wing magazine Krytyka Polityczna, included Blumenthal in a 2014 New York Times opinion piece entitled "Putin's Useful Idiots".

[135] She wrote that Blumenthal overstates his case "with misleading or one-sided examples" in an account of the United States involvement in wars during the previous two decades which "tips sufficiently and with enough regularity into full-scale conspiracy to allow any careful reader to dismiss it."

He said footage from Bloomberg News showed that opposition protesters on the Francisco de Paula Santander bridge in the border were preparing Molotov cocktails, "which could easily set a truck cabin or its cargo alight".