Dina Powell at the White House. Photo: Andrew Harnik / AP

Dr. Nadia Schadlow, who currently works on strategy on the staff of National Security Adviser H.R. McMaster, is the likely successor to Dina Powell, deputy national security adviser for strategy. Powell announced Friday that she will leave the White House early next year — the first in an expected wave of senior West Wing departures.

Why it matters: Powell was one of the few senior West Wing officials with previous White House experience, and the coming brain drain could leave President Trump with key holes. The administration has always been thinly staffed, and bringing top people in will be hard, in part because of uncertainty surrounding the Mueller investigation.

Why she's leaving: Powell told me she had committed to one year of service, and her family remained in New York.

Defense Secretary James Mattis said in a statement: "With the pending departure of Dina Powell, we are losing an invaluable member of the President's national security team. I personally appreciate Dina's partnership and contributions to the mission of the Department of Defense."

Why she matters: Powell was among the aides who communicated well with Trump, and accompanied him on all his overseas trips. She helped with White House efforts on a restart of Middle East policy.

A departure date has not been set.

Go deeper

Updated 3 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Aïda Amer/Axios

  1. Global: Total confirmed cases as of 4:30 p.m. ET: 21,020,216 — Total deaths: 761,393— Total recoveries: 13,048,303Map.
  2. U.S.: Total confirmed cases as of 4:30 p.m. ET: 5,289,323 — Total deaths: 167,948 — Total recoveries: 1,774,648 — Total tests: 64,831,306Map.
  3. Health: CDC: Survivors of COVID-19 have up to three months of immunity Fauci believes normalcy will return by "the end of 2021" with vaccine — The pandemic's toll on mental health.
  4. Business: How small businesses got stiffed — Unemployment starts moving in the right direction.
  5. Cities: Coronavirus pandemic dims NYC's annual 9/11 Tribute in Light.
  6. Politics: Biden signals fall strategy with new ads.

Harris: "Women are going to be a priority" in Biden administration

Sen. Kamala Harris at an event in Wilmington, Del. Photo: Drew Angerer/Getty Images

In her first sit-down interview since being named Joe Biden's running mate, Sen. Kamala Harris talked about what she'll do to fight for women if elected VP, and how the Democrats are thinking about voter turnout strategies ahead of November.

What they're saying: "In a Biden-Harris administration women are going to be a priority, understanding that women have many priorities and all of them must be acknowledged," Harris told The 19th*'s Errin Haines-Whack.

Facebook goes after Apple

Illustration: Lazaro Gamio/Axios

Facebook is seeking to force a face-off with Apple over its 30% in-app purchase commission fee, which Facebook suggests hurts small businesses struggling to get by during the pandemic.

The big picture: Facebook has never publicly gone after Apple, a key strategic partner, this aggressively. Both companies face antitrust scrutiny, which in Apple's case has centered on the very fee structure Facebook is now attacking.