The official report of the House Select Committee, which runs to more than 800 pages, is too deeply biased to give much help. This was foreordained given the hyper-partisan way the Select Committee was formed. Then-House Speaker Nancy Pelosi rejected then-House Minority Leader Kevin McCarthy’s two Republican appointments to the committee—Representatives Jim Jordan and Jim Banks—and instead appointed two virulently anti-Trump Republicans, Representatives Liz Cheney and Adam Kinzinger.More important than the report’s factual errors are the serious questions never investigated by the Select Committee. Why did Democrat congressional leaders turn down repeated offers of National Guard troops to protect the...