Republican Rep. Adam Kinzinger is firing back after Donald Trump's latest unfounded claims of election fraud. Trump sent a flurry of tweets Saturday morning, including one which read: 'The 'Justice' Department and the FBI have done nothing about the 2020 Presidential Election Voter Fraud, the biggest SCAM in our nation's history, despite overwhelming evidence. They should be ashamed. History will remember. Never give up. See everyone in D.C. on January 6th.' The tweet was labeled by Twitter as a disputed claim.