The Defense Department wrote on Tuesday that it is unable to cooperate "at this time" with House committees' subpoena for documents related to President Trump's efforts to push Ukraine to investigate Joe Biden, Politico's Jake Sherman reports.

The big picture: The department's refusal to hand over documents is based largely on the executive privilege argument invoked by the White House over the unredacted Mueller report and the controversial Census citizenship question. The DOD also argues that the House has not yet held a full, formal vote to authorize an impeachment inquiry against Trump.

What's happening: The House Intelligence, Foreign Affairs and Oversight committees are investigating whether Trump froze U.S. military aid to Ukraine to pressure its government to investigate Biden and his son over unsubstantiated corruption allegations.

  • The White House has told House Democratic leaders that it will not comply with their impeachment inquiry, calling the probe "constitutionally illegitimate."

What they're saying: "The Department understands the significance of your request for information and has taken steps to identify, preserve, and collect potentially responsive documents. ... The Department is prepared to engage in that process consistent with longstanding practice and provide the responsive information should there be resolution of this matter."

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

Go deeper

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13 members of St. Louis Cardinals test positive for coronavirus

Photo: Hannah Foslien/Getty Images

Seven players and six staff members from the St. Louis Cardinals have tested positive for the coronavirus over the past week, prompting the MLB to postpone the team's upcoming four-game series against the Detroit Tigers.

Why it matters: Seven consecutive Cardinals games have now been canceled after St. Louis became the second team to report a significant coronavirus outbreak, just two weeks into the season.

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Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 3 p.m. ET: 18,149,860 — Total deaths: 690,624 — Total recoveries — 10,753,318Map.
  2. U.S.: Total confirmed cases as of 3 p.m. ET: 4,690,404 — Total deaths: 155,124 — Total recoveries: 1,468,689 — Total tests: 56,812,162Map.
  3. Politics: White House will require staff to undergo randomized coronavirus testing — Pelosi says Birx "enabled" Trump on misinformation.
  4. Business: Virtual school is another setback for retail — The pandemic hasn't hampered health care.
  5. Public health: Former FDA chief says MLB outbreaks should be warning sign for schools.
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White House adviser Peter Navarro talks TikTok

President Trump has relaxed his threat to immediately ban the popular social media app TikTok, giving Microsoft room to negotiate an acquisition from Chinese tech giant ByteDance.

Axios Re:Cap digs into the situation with Peter Navarro, the White House's top trade adviser and a noted China hawk, who suggests Microsoft should be forced to make unrelated concessions related to its China operations.