the Biden's. Whistleblower appears to be an appropriate term for someone personally involved in the scheme.
"The dynamite assertion, believable because it aligns with earlier information we know to be true, came in a statement by Tony Bobulinski, who describes himself as a former partner of Hunter Biden, Joe Biden and Joe’s brother Jim in the China scheme. Bobulinski unloads his bill of accusations in blunt but precise language and detail."
Hunter biz partner confirms email, details Joe Biden’s push to make millions from China: Goodwin
https://nypost.com/2020/10/22/hunter-biz-partner-confirms-e-mail-details-joe-bidens-push-to-make-millions-from-china/