House Republicans are intensifying their investigation into potential retaliation against IRS whistleblowers who revealed allegations of political influence in the Hunter Biden probe. They are demanding answers from the U.S. Office of Special Counsel (OSC) about whether they contributed to alleged retaliation and a ‘smear campaign’ against IRS whistleblowers Gary Shapley and Joseph Ziegler. The latest development comes after the IRS reportedly gave Shapley a 15-day ultimatum to either accept a demotion or resign, shortly after he discussed damaging evidence in an interview.