"The Department of Justice is rogue and weaponized. The Republican Party has to step up and counter their efforts," Biggs' office said in a statement.
"The Republican Party has to prosecute people like Hunter and Joe Biden as the party now has a mountain of evidence."
Biggs' statement comes after the US House Oversight Committee revealed it had dropped its plans on Wednesday to proceed with contempt proceedings against FBI Director Christopher Wray.
The House panel had been intent on filing contempt charges after Wray initially refused to meet the demands of a subpoena that called for the release of an FD-1023 form that allegedly details a 'bribery' scheme in which then-Vice President Biden showed interest in taking a payoff in exchange for securing policy decisions.