THIS EPISODE: Democratic presidential nominee Joe Biden’s ‘American darkness’ speech theme was really about Donald Trump, MSNBC host of The ReidOut Joy Reid tells Jonathan Capehart, amid critiques from the GOP that the Democratic National Convention painted a negative picture of America. AND: The Democratic National Convention, his statement at the convention, and America’s future are discussed by historian Jon Meacham, author of ‘His Truth Is Marching On: John Lewis and the Power of Hope.’ Meacham adds, ‘The point of America has to be that everyone has what Lincoln called an open field and a fair chance.’ THEN: Trump’s statements on the election, the post office controversy, and having an ‘Election Month’ in October through mail-in voting--instead of a single election day on Nov. 3--are discussed by House Majority Whip Rep. James Clyburn. PLUS: Former Trump administration aide Steve Bannon faces allegations that he defrauded donors to the We Build the Wall campaign. Former U.S. attorney Barb McQuade explains these allegations, telling Jonathan Capehart, ‘[Bannon] is facing a very serious criminal charge.’ All this and much more in this Saturday edition of AM JOY on MSNBC.