Adam Schiff says Democrats will not go to court to compel witnesses to testify.
This is in reference to the impeachment inquiry into President Donald Trump.
Instead, Schiff said, House Democrats will use the White House's stonewalling.
The stonewalling and lack of compliance add to potential articles of impeachment.
Former deputy national security adviser Charles Kupperman is in hot water too.
He defied a House subpoena to testify to Congress on Monday, reports Business Insider.