House Intelligence Committee Chairman Devin Nunes Devin Gerald NunesOvernight Defense: Stopgap spending measure awaits Senate vote | Trump nominates former Nunes aide for intelligence community watchdog | Trump extends ban on racial discrimination training to contractors, military Trump nominates former Nunes aide to serve as intel community inspector general Sunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election MORE (R-Calif.) is asking the Justice Department to provide information on "any contacts" between FBI sources and more than a dozen Trump campaign officials and associates.

A letter authored by Nunes and obtained by CNN lays out the congressman's expansive request for information, not only on "FBI informants," but "undercover agents, and/or confidential human sources" who had contact with Trump campaign associates before July 31, 2016.

Among the campaign associates mentioned in Nunes's letter are Michael Caputo, Sam Clovis, Michael Cohen, Michael Flynn, Corey Lewandowski Corey R. LewandowskiHow Trump can win reelection: Focus on Democrats, not himself Trump Jr. distances from Bannon group, says he attended 'single' event Bannon, three others charged with defrauding donors of 'We Build The Wall' campaign MORE, Stephen Miller, Peter Navarro, Sam Nunberg, George PapadopoulosGeorge Demetrios PapadopoulosTale of two FBI cases: Clinton got warned, Trump got investigated Trump says he would consider pardons for those implicated in Mueller investigation New FBI document confirms the Trump campaign was investigated without justification MORE, Carter Page, Walid Phares, Joseph Schmitz, Roger Stone Roger Jason StoneThe agony of justice Our Constitution is under attack by Attorney General William Barr Justice IG investigating Stone sentencing: report MORE and Donald Trump Jr. Don John Trump'Tiger King' star Joe Exotic requests pardon from Trump: 'Be my hero please' Zaid Jilani discusses Trump's move to cancel racial sensitivity training at federal agencies Trump International Hotel in Vancouver closes permanently MORE

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President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE and his political allies, including Nunes, have seized on the disclosure that an FBI informant met with at least three Trump campaign officials in 2016 to suggest that the agency may have improperly collected information on the campaign.

Multiple lawmakers — both Republicans and Democrats — who were briefed on the use of the informant have said, however, that they have not seen evidence to suggest wrongdoing by the FBI.

According to CNN, the Justice Department told Nunes that he had already gotten his answer on whether the FBI used intelligence sources against the Trump campaign. Nunes was among the lawmakers briefed on the FBI informant.