Hunter Biden deducted tens of thousands of dollars in payments he made to a prostitute and a sex club from his taxes, IRS whistleblowers told Congress. One whistleblower, an IRS criminal investigator whose identity remains a mystery but who worked on the Biden tax probe, told members of the House Ways and Means Committee in a June 1 interview that Biden improperly deducted those expenses from his 2018 taxes. That's one of the years covered under Biden's plea deal with federal prosecutors, which critics are deriding as a sweetheart deal. Another whistleblower, IRS criminal supervisory special agent Gary Shapley, told...