Tim Morrison, the National Security Council's Russia and Europe director has left his White House post as his Thursday impeachment inquiry testimony looms.

Where it stands: Morrison told the House committees Thursday morning that he resigned on his volition late Wednesday evening, two sources familiar with the matter tell Axios.

Morrison said his decision was not influenced by the impeachment investigation, but one of the sources said “whether you choose to believe that is up to you.”

Barbara Van Gelder, Morrison's lawyer, told Axios' Alayna Treene she had "no comment" when asked about NPR's report

Why it matters: Morrison is scheduled to testify before House impeachment committees on Thursday. Lt. Col. Alexander Vindman testified Tuesday that the White House memo of President Trump's July 25 phone call with the Ukrainian president "omitted crucial words and phrases." Vindman said he provided written edits and corrections of the memo to Morrison, per the New York Times.

  • Vindman added that "some of his edits appeared to have been successful," aside from two involving Burisma — the Ukrainian company in which Hunter Biden served on the board in 2014 — and former Vice President Joe Biden.

Go deeper ... Impeachment inquiry: What to watch in the week ahead

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Updated 59 mins ago - Politics & Policy

Coronavirus dashboard

Illustration: Annelise Capossela/Axios

  1. Global: Total confirmed cases as of 3 p.m. ET: 20,158,258 — Total deaths: 738,063 — Total recoveries: 12,388,686Map.
  2. U.S.: Total confirmed cases as of 3 p.m. ET: 5,116,791 — Total deaths: 164,137 — Total recoveries: 1,670,755 — Total tests: 62,513,174Map.
  3. States: Florida reports another daily record for deaths State testing plans fall short of demand.
  4. Axios-Ipsos poll: 1 in 2 has a personal connection to COVID-19.
  5. Business: Moderna reveals it may not hold patent rights for vaccine.
  6. 🏈 Sports: Big Ten scraps fall football season due to coronavirus.

Big Ten postpones fall sports due to coronavirus

Photo: Joe Robbins/Getty Images

The Big Ten announced Tuesday that it has voted to postpone its 2020 fall sports season, including football, due to risks posed by the coronavirus pandemic, hoping instead to play in the spring.

Why it matters: The move from one of the most prominent conferences in college sports will almost certainly prompt other Power Five leagues to follow suit.

13 of Biden's former rivals to appear together at Democratic convention

Democratic presidential candidates at the primary debate in Charleston, SC. Photo: Win McNamee/Getty Images

In a show of unity at the Democratic National Convention, 13 of Joe Biden's former 2020 challengers will appear via video to talk about the party's vision for the country and how they'll work with Biden to get it done.

Why it matters: Coalescing around Biden and his eventual running mate will help Democrats head into the general election against President Trump with a united front — unlike what they did in 2016.