Mr Trump's simmering anger over Special Counsel Robert Mueller's year-old Russian Federation probe appeared to spill over into a series of well-worn recriminations in several tweets, including that the investigation was politically motivated and had its roots in the administration of his Democratic predecessor. The former mayor said Sunday the two sides "were getting closer" to agreeing on the parameters on a potential interview but would not put the odds of it happening at better than 50/50.
With the demand, Trump entered into the realm of applying presidential pressure on the Justice Department regarding an investigation into his own campaign - a move few of his predecessors have made.
The New York Times said on Saturday the meetings were an indication that other countries besides Russian Federation may have offered help to Trump's presidential campaign.
President Trump called the FBI Director and Deputy Attorney General to the White House Wednesday.
Nunes, who has repeatedly been blamed by Democrats for being the leaker, was referring to reports by the New York Times and the Washington Post, describing the informant as someone who supposedly had contacts with members of President Trump's campaign.
President Donald Trump demanded a U.S. Department of Justice investigation into allegations that the DOJ or the FBI infiltrated his presidential campaign - something he suggested was ordered by the Barack Obama administration.
In March 2017, the president tweeted that in October 2016, Obama had conducted surveillance at Trump Tower in NY, which had served as headquarters to his campaign and also his place of residence.
Netanyahu thanks United States for new Iran policy outlined by Pompeo
Izadi, an expert on the JCPOA and advisor to Iran's Foreign Ministry, said Iran may also step up the training of nuclear scientists.
Deputy Attorney General Rod Rosenstein said if anyone did infiltrate the Trump campaign, the DOJ would need to know about it and then take action.
In March, Inspector General Michael Horowitz said there would be an investigation into Republican complaints of FBI wrongdoing in the early stages of the Russian Federation probe. He said only the release or review of documents the House Intelligence Committee is seeking from the Justice Department "can give conclusive answers".
Rep. Adam Schiff of California, the ranking Democrat on the House Intelligence Committee, termed the assertion "nonsense" in a tweet on Sunday.
Trump has constantly attacked the inquiry and first made the accusation that the Federal Bureau of Investigation had sent a spy into his campaign team on Friday. Analysts described his demand for an investigation of the investigation as unprecedented.
A number of those charges were related to Russia's alleged interference in the 2016 election, but none of them has been extended to collusion allegations. Schiff and other committee Democrats were furious and argued that Republicans had not subpoenaed many witnessed they considered essential to the committee's work.
Without substantiation, Trump tweeted in March 2017 that former president Barack Obama had conducted surveillance the previous October at Trump Tower, the NY skyscraper where Trump ran his campaign and transition and maintains a residence. "With respect to the president's tweets about alleged wiretapping directed at him by the prior administration, I have no information that supports those tweets, and we have looked carefully inside the FBI", Comey told the panel. The government also obtained a secret warrant in October 2016 to monitor former Trump campaign aide Carter Page's communications after convincing a judge it was appropriate to that investigation.