Hunter Biden and Joe Biden
Hunter Biden (left) and his father President Joe Biden (right).
  • A witness in the GOP's effort to impeach Biden was indicted last week on suspicion of lying to the FBI.
  • Alexander Smirnov is charged with falsifying records that the Bidens took bribes from Burisma Holdings.
  • Smirnov said Russian intelligence passed along the story of the bribery claims, per a court filing.

Alexander Smirnov, an ex-FBI informant, admitted in a post-arrest interrogation that Russian intelligence sources were behind his claims that Joe Biden and his son Hunter Biden accepted bribes from the Ukrainian energy company Burisma Holdings, according to new court filings.