"Disproven:" Trump 2020 insider recounts failed search for voter fraud

Ken Block got the call on the day after the 2020 election: the Trump campaign sought out his expertise in data analysis and software to probe for the voter fraud that the former POTUS claimed led to his defeat. While the fraud didn't exist, Block - a former Republican candidate for Rhode Island governor - says what he's learned should be a cautionary tale for election officials to preserve public confidence in the system. He joined Jim Lokay on "The Final 5" to discuss his new book, "Disproven: My Unbiased Search for Voter Fraud for the Trump Campaign, the Data that Shows Why He Lost, and How We Can Improve Our Elections."