
Donald Trump, a former president of the United States, has a history of speech and actions that have been viewed by scholars and the public as racist or white supremacist. Journalists, friends, family, and former employees have accused him of fueling racism in the United States. Trump has repeatedly denied accusations of racism, and some people he has worked with claim that he is not racist.

Allegations that the United States military used biological weapons in the Korean War were raised by the governments of People's Republic of China, the Soviet Union, and North Korea. The claims were first raised in 1951. The story was covered by the worldwide press and led to a highly publicized international investigation in 1952. Secretary of State Dean Acheson and other American and allied government officials denounced the allegations as a hoax. Subsequent scholars are split about the truth of the claims.

Throughout the history of the New York City Police Department, numerous instances of corruption and misconduct, and allegations of such, have occurred. Over 12,000 cases have resulted in lawsuit settlements totaling over $400 million during a five-year period ending in 2014. In 2019, taxpayers funded $68,688,423 as the cost of misconduct lawsuits, a 76 percent increase over the previous year, including about $10 million paid out to two exonerated individuals who had been falsely convicted and imprisoned.

NPR, full name National Public Radio, is a privately and publicly funded non-profit membership media organization that serves as a national syndicator to 797 public radio stations in the United States of America. Various allegations of bias against conservatives have arisen throughout NPR's history. The Pew survey found that the NPR audience tends Democratic and centrist.

The occupation of the Baltic states involved the military occupation of the three Baltic states—Estonia, Latvia and Lithuania—by the Soviet Union under the auspices of the Molotov–Ribbentrop Pact signed 23 August 1939. They were then annexed into the Soviet Union as constituent republics in August 1940, though most Western powers and nations never recognised their incorporation. On 22 June 1941, Nazi Germany attacked the Soviet Union and within weeks occupied the Baltic territories. In July 1941, the Third Reich incorporated the Baltic territory into its Reichskommissariat Ostland. As a result of the Red Army's Baltic Offensive of 1944, the Soviet Union recaptured most of the Baltic states and trapped the remaining German forces in the Courland pocket until their formal surrender in May 1945.

Allegations of a support system in Pakistan for Osama bin Laden have been made both before and after Osama bin Laden was found living in a compound in Abbottabad, Pakistan and was killed by a team of United States Navy SEALs on 2 May 2011. The compound itself was located just half a mile from Pakistan's premier military training academy Kakul Military Academy (PMA) in Abbottabad. In the aftermath of bin Laden's death, US-President Barack Obama asked Pakistan to investigate the network that sustained bin Laden. "We think that there had to be some sort of support network for bin Laden inside of Pakistan," Obama said in a 60 Minutes interview with CBS News. He also added that the United States was not sure "who or what that support network was." In addition to this, in an interview with Time magazine, CIA Director Leon Panetta stated that US-officials did not alert Pakistani counterparts to the raid because they feared the terrorist leader would be warned. However, the documents recovered from bin Laden’s compound 'contained nothing to support the idea that bin Laden was protected or supported by the Pakistani officials'. Instead, the documents contained criticism of Pakistani military and future plans for attack against the Pakistani military installations.

Alleged Libyan financing in the 2007 French presidential election purportedly took the form of Libya's covert and illicit bankrolling of the presidential campaign of Nicolas Sarkozy with up to €50 million in pay-outs. Sarkozy has denied wrongdoing and rejected suggestions he was a Libyan agent of influence during his tenure as president of France. He has since officially been charged for corruption on March 21, 2018.

Several authors have alleged that there was a plot to kidnap Pope Pius XII by the Nazis when they occupied Rome during World War II. SS General Karl Wolff stated that he had been ordered on September 13, 1943, to kidnap the Pope.

The Biden–Ukraine conspiracy theory is a series of unevidenced claims centered on the false allegation that while Joe Biden was vice president of the United States, he engaged in corrupt activities relating to the employment of his son Hunter Biden by the Ukrainian gas company Burisma. They were spread primarily in an attempt to damage Joe Biden's reputation during the 2020 presidential campaign. United States intelligence community analysis released in March 2021 found that proxies of Russian intelligence promoted and laundered misleading or unsubstantiated narratives about the Bidens "to US media organizations, US officials, and prominent US individuals, including some close to former President Trump and his administration." The New York Times reported in May 2021 that a federal criminal investigation was examining a possible role by current and former Ukrainian officials, including whether they used former Trump personal attorney Rudy Giuliani to spread unsubstantiated claims, who is the subject of a separate federal investigation.

The United States Central Intelligence Agency (CIA) has been accused of involvement in drug trafficking. Books and investigations on the subject that have received general notice include works by the historian Alfred McCoy, professor and diplomat Peter Dale Scott, journalists Gary Webb and Alexander Cockburn, and writer Larry Collins. These claims have led to investigations by the United States government, including hearings and reports by the United States House of Representatives, Senate, Department of Justice, and the CIA's Office of the Inspector General.
David Hamilton was a British photographer and film director best known for his photography of young women and girls, mostly in the nude. His signature soft focus style was called the "Hamilton Blur", which was erroneously thought to be achieved by smearing Vaseline on the lens of his camera. It was not created that way. Hamilton's images became part of an "art or pornography" debate.

Allegations regarding Hassan Rouhani's plagiarism were first raised in 2013 when it was claimed that he had probably "lifted" sentences from a book by Afghan author, Mohammad Hashim Kamali. Glasgow Caledonian University, Rouhani's graduation school, argued that the sentences were both cited properly. The issue was raised again amid 2017 Iranian presidential election when a student campaign claimed that they had for the first time investigated Rouhani's whole thesis using plagiarism detection tool iThenticate and that chapters one through four of Rouhani’s thesis had been plagiarized at least 39%, 43%, 40% and 82%, respectively. Ayatollah Ali Akbar Kalantari, a member of Assembly of Experts, Shiraz University faculty member and one of the alleged victims, said that "major segments" of Chapter 4 of Rouhani's thesis had been translated from his book without being referenced.

For much of the second phase of his career, American cyclist Lance Armstrong faced constant allegations of doping. Armstrong consistently denied allegations of using performance enhancing drugs until a partial confession during a broadcast interview with Oprah Winfrey in January 2013.

"J'Accuse...!" was an open letter published on 13 January 1898 in the newspaper L'Aurore by Émile Zola in response to the Dreyfus affair. Zola addressed President of France Félix Faure and accused his government of antisemitism and the unlawful jailing of Alfred Dreyfus, a French Army General Staff officer who was sentenced to lifelong penal servitude for espionage. Zola pointed out judicial errors and lack of serious evidence. The letter was printed on the front page of the newspaper and caused a stir in France and abroad. Zola was prosecuted for libel and found guilty on 23 February 1898. To avoid imprisonment, he fled to England, returning home in June 1899.

Robert Roger Porter is an American lawyer and former political aide who served as White House Staff Secretary for President Donald Trump from January 20, 2017, until February 7, 2018. He was previously Chief of Staff for U.S. Senator Orrin Hatch of Utah.

On March 4, 2017, Donald Trump wrote a series of posts on his Twitter account that accused former President Barack Obama of wiretapping his phones at his Trump Tower office late in the 2016 presidential campaign. Trump called for a congressional investigation into the matter, and the Trump administration cited news reports to defend these accusations. His initial claims were based on an article on Breitbart News, which cited speculations made by conspiracy theorist Louise Mensch. By June 2020, no evidence had surfaced to support the claim, which had been refuted by the Justice Department (DOJ).

The Steele dossier, also known as the Trump–Russia dossier, is a political opposition research report written from June to December 2016 containing allegations of misconduct, conspiracy, and co-operation between Donald Trump's presidential campaign and the government of Russia prior to and during the 2016 election campaign. NPR has described the controversial opposition research as an "explosive dossier of unsubstantiated and salacious material about President Trump's alleged ties with Russia". The dossier, leaked without permission, is an unfinished 35-page compilation of raw intelligence based on information from witting and unwitting anonymous sources known to the author, counterintelligence specialist Christopher Steele, a former head of the Russia Desk for British intelligence (MI6), written for the private investigative firm Fusion GPS. Steele treated the dossier as raw intelligence, not proven fact. The dossier's 17 reports allege that Trump campaign members and Russian operatives had conspired to co-operate in Russia's election interference to benefit Trump. It also alleges that Russia sought to damage Hillary Clinton's candidacy, including sharing negative information about Clinton with the Trump campaign. The draft dossier was published in full by BuzzFeed News on January 10, 2017, noting that it was unverified. This was done without permission from Orbis Business Intelligence or Steele. Several mainstream media outlets criticized BuzzFeed's decision to publish the reports without verifying their allegations, while others defended its decision.