An Internal Revenue Service ­official has filed a whistleblower complaint reporting that he was told that at least one Treasury Department political appointee attempted to improperly interfere with the annual audit of the president’s or vice president’s tax returns, according to multiple people familiar with the document.

Trump administration officials dismissed the whistleblower’s complaint as flimsy because it is based on conversations with other government officials. But congressional Democrats were alarmed by the complaint, now circulating on Capitol Hill, and flagged it in a federal court filing. They are also discussing whether to make it public.

The details of the IRS complaint follow news of a separate, explosive whistleblower complaint filed in August by a member of the intelligence community. That complaint revealed Trump’s request of Ukranian leaders to investigate former vice president Joe Biden, a political rival. It has spurred an impeachment probe on Capitol Hill.

The IRS complaint has come amid the escalating legal battle between the Treasury Department and House Democrats over the release of President Trump’s tax returns. Part of that inquiry from Democrats is over how the IRS conducts its annual audit of the president’s and vice president’s tax returns. That process is supposed to be walled off from political appointees and interference.

Of course political appointees are trying to interfere with Trump’s audits.

The Mad Emperor must be appeased, after all.

Congress needs to review all of Trump’s audits, which means that they need his tax returns.