The House Judiciary Committee will contend Friday in court that it still needs information quickly from former Special Counsel Robert S. Mueller III’s investigation even though the House impeached President Donald Trump last month.

The federal appeals court in Washington set oral argument for Friday morning in two committee cases: a lawsuit to force former White House Counsel Don McGahn to testify about episodes from Mueller’s report on Russian interference in the 2016 election, and an application to see secret grand jury materials from that same investigation.

But after the Dec. 18 vote mainly along party lines to impeach Trump, the judges of the U.S. Court of Appeals for the District of Columbia Circuit had a new question: What does that congressional action mean for these court actions?

House attorneys responded in court filings that the information is critical for an upcoming impeachment trial in the Senate and possibly for more articles of impeachment against Trump.

[Judge backs House Judiciary in ruling on Mueller materials]