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Senate Minority Leader Chuck Schumer. Photo: Samuel Corum/Getty Images

Senate Minority Leader Chuck Schumer sent a letter to all senators on Monday arguing that the White House produce documents linked to an alleged effort to pressure the Ukrainian government to investigate President Trump's political rivals ahead of the Senate's impeachment trial.

The big picture: A batch of newly released emails showed that the Office of Management and Budget ordered the Pentagon to withhold military aid to Ukraine 91 minutes after President Trump's July phone call with Ukrainian President Volodymyr Zelensky.

There simply is no good reason why evidence that is directly relevant to the conduct at issue in the Articles of Impeachment should be withheld from the Senate and the American people."
— Excerpt from Schumer's letter

What he's saying:

  • "To oppose the admission of this evidence would be to turn a willfully blind eye to the facts, and would clearly be at odds with the obligation of Senators to 'do impartial justice' according to the oath we will all take in the impeachment trial," Schumer said in the letter.
  • He later told reporters Senate Majority Leader Mitch McConnell was "hiding the truth" by blocking documents and witnesses for the Senate's impeachment trial, saying: "He's afraid of the truth."

Context: McConnell dismissed Schumer's (D-N.Y.) original request to have four White House witnesses testify in the Senate's impeachment trial on the grounds that it's the House's "duty to investigate," saying the Senate won't volunteer its time for a "fishing expedition."

Read the letter:

Go deeper ... Mitch McConnell on Trump impeachment: "Let's quit the charade"

Editor's note: This article has been updated with Schumer's comments on McConnell and the Senate majority leader's position on the issue.

Go deeper

Updated 2 hours ago - Technology

3D printing's next act: big metal objects

Chief Scientist Andy Bayramian makes modifications to the laser system on Seurat's 3D metal printer. Photo courtesy of Seurat Technologies.

A new metal 3D printing technology could revolutionize the way large industrial products like planes and cars are made, reducing the cost and carbon footprint of mass manufacturing.

Why it matters: 3D printing — also called additive manufacturing — has been used since the 1980s to make small plastic parts and prototypes. Metal printing is newer, and the challenge has been figuring out how to make things like large car parts faster and cheaper than traditional methods.

Updated 3 hours ago - Technology

Mayors see cryptocurrency as a way to address income inequality

Illustration: Sarah Grillo/Axios

At the U.S. Conference of Mayors' meeting in D.C. this week, there's buzz around the idea of giving cryptocurrency accounts to low-income people.

Why it matters: Cities have been experimenting with newfangled ways to address income inequality — like guaranteed income programs — and the latest wave of trials could involve paying benefits or dividends in bitcoin, stablecoin or other digital currencies.

Updated 3 hours ago - Politics & Policy

Omicron dashboard

Illustration: Aïda Amer/Axios

  1. Health: FDA OKs antiviral drug remdesivir for non-hospitalized COVID patients — Walensky: CDC language "pivoting" on "fully vaccinated" — Fauci: "Confident" Omicron cases will peak in February
  2. Vaccines: Team USA 100% vaccinated against COVID ahead of Beijing Olympics — Kids' COVID vaccination rates are particularly low in rural America — Annual COVID vaccine preferable to boosters, says Pfizer CEO.
  3. Politics: Arizona governor sues Biden administration over COVID funds tied to mandates — Biden concedes U.S. should have done more testing — Arizona says it "will not be intimidated" on anti-mask school policies.
  4. World: Greece imposes vaccine mandate for people 60 and older — Austria approves COVID vaccine mandate for adults — Beijing officials urge COVID-19 "emergency mode" before Winter Olympics.
  5. Variant tracker