Two IRS whistleblowers leveled serious allegations about Hunter Biden and the government’s investigation of the troubled first son, according to transcripts of testimony released this week.

The whistleblowers, IRS supervisory criminal investigator Gary Shapley and a second unnamed IRS investigator, provided evidence to the House Ways and Means Committee that top Justice Department officials stonewalled an investigation into Hunter Biden’s taxes and foreign business ventures. They also call into question President Biden’s repeated denials that he has no knowledge of his son’s business dealings.

Here are 16 of the biggest revelations from transcripts of their interviews: