Former Ukraine Ambassador Marie Yovanovitch. Photo: Drew Angerer/Getty Images

Former Ukraine Ambassador Marie Yovanovitch has retired from the State Department, NPR first reported. The career diplomat remained on payroll since she was ousted from the department last year, per NPR.

Why it matters: During her closed-door deposition before House impeachment committees, Yovanovitch testified that President Trump's lawyer Rudy Giuliani led the smear campaign that led to her firing. Her ouster and testimony were key events leading to Trump's impeachment in the House.

State Department officials did not immediately respond to a request for comment.

Go deeper: First casualty of impeachment war

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Updated 25 mins ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 8:30 p.m. ET: 30,911,999 — Total deaths: 959,059— Total recoveries: 21,147,903Map.
  2. U.S.: Total confirmed cases as of 8:30p.m. ET: 6,796,384 — Total deaths: 199,474 — Total recoveries: 2,590,671 — Total tests: 95,108,559Map.
  3. Politics: Testing czar on Trump's CDC contradictions: "Everybody is right" Ex-FDA chief: Career scientists won't be "easily cowed" by political vaccine pressure.
  4. Education: What we overlooked in the switch to remote learning.
  5. Health: The dwindling chances of eliminating COVID-19 — 7 states set single-day coronavirus case records last week.
  6. World: England sets £10,000 fine for breaking self-isolation rules — The countries painting their pandemic recoveries green.

Arrest over letter to Trump containing poison ricin

President Trump returning to the White House from Minnesota on Sept. 18. Photo: Win McNamee/Getty Images

A suspect was arrested for allegedly "sending a suspicious letter" after law enforcement agents intercepted an envelope addressed to President Trump containing the poison ricin, the FBI confirmed in an emailed statement to Axios Sunday.

Details: The suspect, a woman, was arrested while trying to enter New York from Canada, law enforcement forces said.

Trump campaign goes all in on Pennsylvania

Trump poster in Scranton, Pennsylvania. Photo: Robert Nickelsberg/Getty Images

The president's campaign is placing more importance on Pennsylvania amid growing concern that his chances of clinching Wisconsin are slipping, Trump campaign sources tell Axios.

Driving the news: Pennsylvania, which has 20 electoral votes, twice Wisconsin's number, actually has been trending higher in recent public and internal polling, a welcome development for the campaign.