Denver Riggleman on new book, Jan. 6 committee investigation

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