Specifically, Democrats want to compel former White House counsel Donald McGahn — who witnessed multiple, damning instances of Trump obstructing justice — to testify to Congress, over the White House’s objections.
The House is set to sue to make this happen, with the goal of getting a judge to rule on the administration’s claim that the White House can assert “absolute immunity” to such requests. If Democrats win that, it could compel more cooperation on other fronts.
But an impeachment inquiry would make that more likely to succeed. As the Times reports, Judiciary members believe a unilateral inquiry without a full House vote would accomplish that goal:
Doing so, they think, would strengthen their hand in the courts and potentially persuade judges to move more quickly on cases such aslike the potential one against Mr. McGahn, while building on any momentum generated by Mr. Mueller.
Exactly.