A bipartisan Capitol Hill committee is investigating Matt Gaetz, the far-right Republican congressman and vocal Donald Trump supporter, over longstanding allegations of sexual misconduct, illicit drug use and other alleged ethical breaches, it said on Tuesday.

The announcement by the House ethics committee – which contains an equal number of Democrats and Republicans – reignited a swirl of scandal surrounding the outspoken Trump ally that had abated somewhat after an earlier criminal investigation into allegations against him was dropped.

In a statement, the committee said it had spoken to dozens of witnesses, issued 25 subpoenas, and reviewed thousands of pages of documents as part of its long-running investigation into Gaetz’s conduct, which was initially opened in April 2021.

As a result of that review, the committee said, certain allegations deserved further examination.