House Republicans reached a critical point this week in their bid to impeach Joe Biden: a closed-door interview with the President’s younger brother James. But the coveted testimony was dramatically overshadowed by another development: The Justice Department indicting one of the impeachment inquiry’s lead informants for lying to the FBI about the Biden family with dirt from Russian intelligence.

The revelation was the latest in a series of embarrassing setbacks for the House GOP’s impeachment effort. In July, one of its whistleblowers was arrested for acting as a Chinese agent. In August, Hunter Biden’s longtime associate Devon Archer—who House Oversight Chair James Comer said could become a “hero” of the probe—testified that President Biden had no involvement in his son’s business dealings. At the inquiry’s first public hearing in September, Comer’s star witness, conservative lawyer Jonathan Turley, said there wasn’t enough evidence to impeach Biden. And on Tuesday, federal prosecutors claimed that FBI informant Alexander Smirnov, who made false bribery allegations against President Biden and his son Hunter, had “extensive and extremely recent contacts” with the Kremlin.