The informant’s story was part of a series of explosive and unsubstantiated claims by Republicans that the Bidens engaged in potentially criminal activity.
Ex-FBI source charged with Biden lies is tied to Russian intelligence, prosecutors say : NPR
Alexander Smirnov, the informant, had planned to leave the U.S. in the days leading up to his arrest to meet with Russian intelligence officials.
The Special Counsel Robert Hur investigation: Biden Administration Clashed With Justice Dept. Over Special Counsel Hur's Report - The New York Times (nytimes.com)