Michael Atkinson testifies to House Intelligence Committee on October 4, 2019. Photo: Tom Williams/CQ Roll Call, Inc. via Getty Images

Intelligence Community Inspector General Michael Atkinson told lawmakers last week that the whistleblower whose complaint about President Trump and Ukraine has set off an impeachment inquiry previously had "some type of professional relationship" with one of the 2020 Democratic candidates, the Washington Examiner first reported and Axios' Jonathan Swan has confirmed.

The big picture: Atkinson wrote in an Aug. 26 letter that the whistleblower demonstrated "some indicia of an arguable political bias ... in favor of a rival political candidate." CNN later reported that the whistleblower is a registered Democrat, which Trump allies have used in an effort to undermine their credibility. Much of the information laid out in the whistleblower's original complaint has since been substantiated.

Atkinson did not say which Democratic candidate or in what capacity the whistleblower worked. A source tells Axios that it was unclear whether the working relationship was in the course of government service or more political.

Go deeper ... Trump-Ukraine scandal: The key players, dates and documents

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Trump says he intends to give RNC speech on White House lawn

President Trump speaking to reporters on South Lawn in July. Photo: Jabin Botsford/The Washington Post via Getty Images

President Trump told the New York Post on Thursday that he plans to deliver his Republican National Convention speech from the White House lawn, despite bipartisan criticism of the optics and legality of the location.

Why it matters: Previous presidents avoided blurring staged campaign-style events — like party conventions — with official business of governing on the White House premises, per Politico.

Updated 2 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Aïda Amer/Axios

  1. Global: Total confirmed cases as of 7 p.m. ET: 20,739,537 — Total deaths: 751,910— Total recoveries: 12,895,242Map.
  2. U.S.: Total confirmed cases as of 7 p.m. ET: 5,242,184 — Total deaths: 166,971 — Total recoveries: 1,755,225 — Total tests: 64,612,034Map.
  3. Politics: House Democrats to investigate scientist leading "Operation Warp Speed" vaccine projectMcConnell announces Senate will not hold votes until Sept. 8 unless stimulus deal is reached.
  4. 2020: Biden calls for 3-month national mask mandateBiden and Harris to receive coronavirus briefings 4 times a week.
  5. States: Georgia Gov. Brian Kemp to drop lawsuit over Atlanta's mask mandate.
  6. Business: Why the CARES Act makes 2020 the best year for companies to lose money.
  7. Public health: Fauci's guidance on pre-vaccine coronavirus treatments Cases are falling, but don't get too comfortable.

Fauci's guidance on pre-vaccine coronavirus treatments

Illustration: Aïda Amer/Axios

Antibody drugs and various medicine cocktails against the coronavirus are progressing and may provide some relief before vaccines.

The big picture: Everyone wants to know how and when they can return to "normal" life, as vaccines are not expected to be ready for most Americans for at least a year. Two therapies are known to be helpful, and more could be announced by late September, NIAID Director Anthony Fauci tells Axios.