What's Behind IRS Turning Blind Eye to Hunter Biden and Hillary Clinton Cases?

Last week, an IRS whistleblower’s team was abruptly removed from the probe into US President Joe Biden's son Hunter, which prompted a second IRS whistleblower to come forward. However, in response, the IRS leadership resorted to intimidation against the whistleblower’s team. Has blowing a whistle become illegal in the “Land of Free”?