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Photo: Win McNamee/Getty Images

President Trump’s former national security adviser John Bolton has been asked to testify before House investigators on Nov. 7, according to a copy of the request obtained by Axios. Bolton's lawyer said he would not appear voluntarily but he would accept a subpoena on Bolton's behalf, the New York Times' reports.

Why it matters: Trump's former Russia adviser Fiona Hill testified earlier this month that Bolton told a top Russia aide to notify White House lawyers about a campaign to pressure the Ukrainian government to investigate the Biden family and the 2016 election.

What they're saying: Hill said Bolton told her to alert the chief lawyer on the National Security Council that Giuliani was "cooking up" a "rogue operation" with acting White House Chief of Staff Mick Mulvaney and Gordon Sondland, the ambassador to the EU, per the Times.

  • Rep. Ro Khanna, a Democrat on the Oversight committee, said that Bolton can clarify "the extent of the president's awareness" of withholding military aid and "he can talk about his own warnings to the president."
  • Khanna added that Bolton could also speak to the president's awareness of arranging a meeting in exchange for a commitment from Ukrainian President Volodymyr Zelensky to open a political investigation.

Our thought bubble: ‪Bolton shares the same lawyer with former NSC official Charles Kupperman, who filed a lawsuit last week asking a federal judge to rule on whether he should testify given that Trump has asserted he is immune from the congressional process and instructed him not to appear.

The bottom line: Bolton could be a key witness in the inquiry. House Intelligence Chairman Adam Schiff said this week that he assumes the Trump administration will fight House investigators in court to keep Bolton from appearing.

Go deeper: Schiff: John Bolton is a "very important witness" in impeachment inquiry

Go deeper

1 min ago - World

Sudanese government says it put down coup attempt

Prime Minister Abdullah Hamdok (L) and Sovereign Council Chief Gen. Abdel Fattah al-Burhan. Photo: Ashraf Shazly/AFP via Getty

The Sudanese government announced on Tuesday morning that its military and security services had foiled an attempted coup from within the country’s armed forces.

Why it matters: The apparent coup attempt comes with Sudan’s transitional government — in which power is shared between civilians and generals — facing crises on several fronts two years after dictator Omar al-Bashir was toppled in a popular uprising.

27 mins ago - Health

Johnson & Johnson says booster shot increases efficacy of COVID vaccine

Syringes and a vial of the Johnson and Johnson COVID-19 vaccine in French Polynesia on Sept. 8. Photo: Jerome Brouillet/AFP via Getty Images

Johnson & Johnson said in a press release Tuesday a global study showed that the protection offered by its coronavirus vaccine was strengthened by a booster shot.

Why it matters: While J&J has not formally applied for authorization to offer booster shots to the general public, it said it has shared the results of the study with the Food and Drug Administration and plans to share it with the World Health Organization and other health regulators.

1 hour ago - World

U.K. prosecutors charge third person in poisoning of former Russian spy

Emergency services members in biohazard encapsulated suits encasing the poisoning scene in a tent in Salisbury, England, in March 2018. Ben Stansall/AFP via Getty Images

U.K. prosecutors said they had enough evidence to charge Denis Sergeev, a member of the Russian military intelligence service, in the 2018 Salisbury nerve agent attack against a former Russian spy, according to AP.

Why it matters: Sergeev is the third person to face charges for the nerve agent attack against Sergei Skripal and his daughter, Yulia, both of whom survived.