More than two dozen progressive groups sent a letter to Congress on Thursday urging an investigation into Justice Brett Kavanaugh’s confirmation process and the numerous controversies around it, according to a copy obtained by BuzzFeed News.

The national furor over Kavanaugh’s nomination to replace former justice Anthony Kennedy on the US Supreme Court, after he was accused of sexual misconduct by multiple women, died down in the months since he was confirmed largely along party lines in October. But groups on the left have continued to seethe, and Thursday’s letter shows they intend to press Democrats to use their new majority status in the House to reopen the issue.

The letter, which was sent to the House Judiciary Committee and the House Committee on Oversight and Reform, asks for inquiries into the allegations of sexual assault against Kavanaugh dating back to his high school years that were raised during the confirmation proceedings — allegations that Kavanaugh denied — and how the Senate and the White House responded to those claims.