Allegations of Obama spying on Trump

• Sam Clovis, national co-chair[32]
• Michael Flynn, campaign advisor and future National Security Advisor[33]
• Paul Manafort, campaign manager
• Carter Page, foreign policy advisor[34]
• George Papadopoulos, foreign policy advisor[32]

• John Brennan, Director of the Central Intelligence Agency[35]
• James Clapper, Director of National Intelligence[36]
• James Comey, Director of the Federal Bureau of Investigation[37]
• Stefan Halper, FBI Informant[38]
• Bruce Ohr, Justice Department official
• Susan Rice, National Security Advisor[39]
• Peter Strzok, FBI Counterintelligence Division[40]
• Sally Yates, United States Deputy Attorney General[41]
• Unnamed U.S. government investigator, used by the FBI as an informant[16]

• William Barr, United States Attorney General[42]
• Doug Collins, former Ranking Member of the United States House Committee on the Judiciary[43]
• John Durham, United States Attorney[44]
• Lindsey Graham, Chairman of the United States Senate Committee on the Judiciary[45]
• Michael E. Horowitz, United States Department of Justice Office of the Inspector General[46]
• Ron Johnson, Chairman of the United States Senate Committee on Homeland Security and Governmental Affairs[47]
• Jim Jordan, Ranking Member of the United States House Committee on the Judiciary[48]
• Devin Nunes, Ranking Member of the United States House Permanent Select Committee on Intelligence, via the Nunes memo[49]

On May 10, 2020—one day after former president Barack Obama criticized the Trump administration's handling of the COVID-19 pandemic[50]—Trump posted a one-word tweet: "OBAMAGATE!"[51] On May 11, Philip Rucker of The Washington Post asked Trump what crime former president Barack Obama committed. Trump's reply was: "Obamagate. It's been going on for a long time ... from before I even got elected and it's a disgrace that it happened.... Some terrible things happened and it should never be allowed to happen in our country again." When Rucker again asked what the crime was, Trump said: "You know what the crime is. The crime is very obvious to everybody. All you have to do is read the newspapers, except yours."[52] On May 15, Trump tweeted that Obamagate was the "greatest political scandal in the history of the United States." This was the third time Trump claimed to be suffering from a scandal of such magnitude, after previously giving Spygate and the Russia investigation similar labels.[53] Also on May 15, Trump linked Obamagate to the "persecution" of Michael Flynn, and a missing 302 form.[54][55]

Trump called for Congress to summon Obama to testify about "the biggest political crime".[56] Senator Lindsey Graham, chair of the Senate Judiciary Committee, said that he did not expect to summon Obama, but would summon other Obama administration officials.[57] Meanwhile, Attorney General William Barr stated that he did not "expect" Obama to be investigated of a crime.[56] Some of Trump's allies have suggested that the "crime" involved the FBI launching an investigation into incoming national security advisor Michael Flynn,[58] or possibly the "unmasking" by outgoing Obama officials to find out the name of a person who was reported in intelligence briefings to be conversing with the Russian ambassador.[59]

In a May 2020 op-ed at the news website RealClearPolitics, Charles Lipson, professor emeritus of political science at the University of Chicago analyzed the content of "Obamagate". He claimed that the concept refers to three accusations: (1) The Obama administration conducted mass surveillance through the NSA; (2) the Obama administration used surveillance against Trump's 2016 presidential campaign, and (3) the Obama administration did not transfer power seamlessly to the new Trump administration. Lipson further claimed that "these abuses didn’t simply follow each other; their targets, goals, and principal players overlapped. Taken together, they represent some of the gravest violations of constitutional norms and legal protections in American history".[60]

The Associated Press (AP) in May 2020 addressed Obamagate in a fact check, stating that there was "no evidence" of Trump's suggestion that "the disclosure of Flynn's name as part of legal U.S. surveillance of foreign targets was criminal and motivated by partisan politics." AP stated that there is not only "nothing illegal about unmasking," but also that the unmasking of Flynn was approved using the National Security Agency's "standard process." Unmasking is allowed if officials feel that it is needed to understand the collected intelligence. AP further pointed out that the Trump administration was conducting even more unmasking than the Obama administration in the final year of Obama's presidency.[61]

In May, attorney general Bill Barr appointed federal prosecutor John Bash to examine unmasking conducted by the Obama administration.[62]

The concept underlies in part a 2020 U.S. Senate investigation[63][64] into the 2016–onward FBI's Crossfire Hurricane investigation.[65] Former deputy attorney general Sally Yates on August 5, 2020, testified before the Committee that investigators were concerned that the national security adviser to president elect Trump, Michael Flynn, was conversing in private with the Russian ambassador. According to Yates, Obama was interested in whether Flynn ought to be considered a safe recipient for sensitive briefings and Obama "did not in any way attempt to direct or influence any kind of investigation. Something like that would have set off alarms for me."[66][67] (According to news reports, a belief that Flynn may have violated the Logan Act – a rarely prosecuted and vague law which constrains individuals from countervailing the existing foreign policy of the United States by way of secretive meetings – that supplied the initial rationale for the FBI to target Flynn.[68][69])

Accusations have been leveled that Senate Republicans used investigations of "Obamagate" to help provide the Donald Trump 2020 presidential campaign with talking points.[70][71]

In September, Sen. Ron Johnson, Chairman of the Senate Homeland Security Committee, led Republicans on the committee in securing subpoenas to look into Trump's Obamagate claims.[72] Johnson had received criticism for stating "the more that we expose of the corruption of the transition process between Obama and Trump, the more we expose of the corruption within those agencies, I would think it would certainly help Donald Trump win reelection and certainly be pretty good, I would say, evidence about not voting for Vice President Biden".[73]

With the news that U.S. Attorney John Durham's investigation into potential abuses within the Obama's administration's handling of the FBI's Crossfire Hurricane investigation would not produce a report or indictments before the 2020 presidential election,[74] President Trump began publicly calling out Attorney General Bill Barr for lack of arrests of major political figures he believes were involved, including his 2020 opponent Joe Biden.[75]

The Washington Post reported on October 13 that Bash's unmasking inquiry had concluded with no findings of substantive wrongdoing and no public report.[76]

On October 25, Trump repeated his allegations in an interview on 60 Minutes, claiming "the biggest scandal was when they spied on my campaign. They spied on my campaign, and they got caught." Host Lesley Stahl challenged the assertion, claiming "there's no real evidence of that. This is 60 Minutes, and we can't put on things we can't verify." Trump disagreed, claiming "they spied on my campaign, and they got caught. And then they went much further than that, and they got caught. And you will see that, Lesley, and you know that, but you just don't want to put it on the air."[77] The dispute was part of a contentious interview that ended with Trump walking out.[78]