Why it matters: The key argument Trump’s legal team plans to make is that the articles of impeachment are deficient on their face because, unlike previous impeachment attempts, they don’t allege that Trump broke the law.

But Democrats plan to highlight how the report from the nonpartisan government agency frequently referred to as the “congressional watchdog“ clearly finds that the Trump administration violated the law.

“This is a big part of our case,” a Democratic leadership aide told Axios. “It shows the extent to the president went to to advance his scheme; he went so far to break the law. It’s an important piece of evidence and only adds to the mountain and body of evidence that we already have.”