BALDWIN: CNN has learned about another inspector general investigation of the Trump administration. The Treasury acting inspector general says his office will look into how the department handled requests from the Ways and Means Committee for the president's tax information. And all of this comes amid a second whistleblower over at the IRS. Lauren Fox is our CNN Politics congressional reporter. You are the one with the scoop. Lauren, tell us what you're learning.</s>LAUREN FOX, CNN POLITICS CONGRESSIONAL REPORTER: We know that House Ways and Means Committee Chairman Richard Neil sent a letter requesting the office of the inspector general at Treasury to look into how the Treasury Department responded to his April request for the president's tax returns. We know the OIG is going to launch a probe. They said in a statement, "Chairman Neal has asked Treasury OIG to inquire into the process by which the department, received, evaluated and responded to the committee's request for federal tax information. We are now undertaking that inquiry." That's according to the acting inspector general of the Treasury Department. And I will tell you, this comes after we had reported earlier this week that a whistleblower had come forward back in July to House Ways and Means Committee Chairman Richard Neal alleging that there has been potential wrongdoing related to the presidential audit program. That's the program in which the president and the vice president's tax returns are audited when a new administration comes into office -- Brooke?</s>BALDWIN: Lauren, thank you very much. The key witness in the middle of the scandal says he doesn't believe Joe Biden did anything wrong. And his testimony doesn't stop there. We have part of the transcript for you. And the damning text messages linking an investigation to presidential meeting, a former federal prosecutor will pick through each of these on the legal exposure, next.
Treasury Watchdog Launches Probe into Trump's Tax Handling Amid IRS Whistleblower Complaint