Denver Riggleman on new book, committee investigation Jan. 6

Former Republican Congressman Denver Riggleman is the author of a new book called Hacking: The Untold Story of the January 6th Investigation. Riggleman joins “CBS Mornings” to talk about his work on the committee as a technical adviser, the testimony of a call from the White House switchboard to a rioter on Jan. 6 and his analysis of calls and messages from influential people in Washington surrounding the riots.