They may be referring to the Republicans' decades-long campaign to suffocate the IRS, which has resulted in more audits for the poor and fewer for the rich, mor

They may be referring to the Republicans' decades-long campaign to suffocate the IRS, which has resulted in more audits for the poor and fewer for the rich, more easily allowing wealthy taxpayers to drag them on past the 10-year statue of limitations: https://www.propublica.org/article/how-the-irs-was-gutted https://www.propublica.org/article/how-the-irs-was-gutted