And it argues that McGahn's testimony is crucial to the House's "most solemn constitutional responsibility" to determine whether to recommend articles of impeachment.
The committee calls McGahn the "most important witness", in its investigation into possible obstruction of justice by Trump.
McGahn emerged as the star witness in the 448-page Mueller report released in April, but he defied a committee subpoena to testify a month later after the White House directed him not to cooperate with the panel.
The lawsuit also contends that McGahn would have "significant evidence of the president's motivations for his actions".
The move represents the latest step toward impeachment by Democrats in the House of Representatives, who last week cited their impeachment drive in a court petition seeking access to Mueller's grand jury evidence.
The lawsuit asks the courts to issue an injunction ordering McGahn to appear and testify before the committee about the Mueller report. Committee aides say that a formal vote is not necessary, because the probe they began in March will help Democrats decide whether to pursue impeachment.
FedEx ends ground delivery partnership with Amazon in sign of new rivalry
The delivery company Wednesday said it would not renew its ground delivery contract with Amazon when it expires in August. Despite its outsize role in e-commerce, Amazon has never been a major source of business for FedEx.
Trump warns Google CEO that they are being watched "very closely"
He also suggested, without evidence, that Google is trying to "illegally subvert" the next election. Google representatives didn't respond to a request for comment as of publishing.
Oil prices drop as U.S.-China trade dispute stokes demand worries
Energy Secretary Rick Perry on Tuesday expressed mutual concern over threats targeting freedom of maritime traffic in the Gulf. USA supply is expected to grow by 1.65M barrels, and global oil supply is expected to grow by 1.53M barrels.
Collins said Kavanaugh has already been thoroughly vetted by the Senate Judiciary Committee, however, Nadler said the Senate only reviewed a fraction of the documents during the confirmation process. The special counsel's investigation documented how Trump told McGahn to fire the special counsel, which he did not do, and then told McGahn to lie publicly about Trump telling him to dismiss Mueller. The letter notes a House subcommittee recently held a hearing on transparency in the federal courts, while lawmakers are considering legislation that would impose a code of conduct on the justices. The National Archives has processed records from Kavanaugh's tenure as White House counsel, according to the Nadler-Johnson letter.
"Don McGahn is Donald Trump's John Dean", a second Democratic lawyer for the committee said.
The Committee also exercises legislative authority, including investigative and oversight authority, with respect to "t$3 he judiciary and judicial proceedings, civil and criminal", and "federal courts and judges." The Committee's jurisdiction encompasses the laws governing judicial ethics and the judicial oath of office; judicial disqualification, and misconduct; and the organization of the Supreme Court.
They reached an agreement with the White House in recent days for McGahn's documents but hit an impasse on his appareance, leading to the lawsuit, they said.
Though the Senate Judiciary Committee reviewed much of Kavanaugh's work as a White House lawyer, most of his staff secretary records were not made public.